Umeå University - Analytical Chemistry

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Ohlsson K.E.A., Sturgeon R.E., Willie S.N., Luong V.T.
"Figures of merit for two-step furnace atomization plasma emission spectrometry."
J. Anal. At. Spectrom. 1993, 8, 41-43.
Lindholm-Sethson B., Orr J.T., Majda M.
"Lateral diffusion of an octadecylferrocene amphiphile in Langmuir-Blodgett bilayer assemblies. Effects of the amphiphile concentration."
Langmuir 1993, 9, 2161-2167.
Ellingsen D.G., Holland R.I., Thomassen Y., Landro-Olstad M., Frech W., Kjuus H.
"Mercury and selenium in workers previously exposed to mercury vapour at a chloralkali plant."
Brit. J. Industr. Med. 1993, 50, 745-752.
Emteborg H., Baxter D.C., Frech W.
"Speciation of mercury in natural waters by capillary gas chromatography with a microwave-induced plasma emission detector following preconcentration using a dithiocarbamate resin microcolumn installed in a closed flow injection system. "
Analyst 1993, 118, 1007-1013.
Johansson M., Berglund M., Baxter D.C.
"Improving accuracy in the quantitation of overlapping, asymmetric, chromatographic peaks by deconvolution: theory and application to coupled gas chromatography atomic absorption spectromery. "
Spectrochim. Acta 1993, 48B, 1393-1409.
Berglund M., Frech W., Baxter D.C., Radziuk B.
"A critical evaluation of a multielement ETAAS system using line sources and a transversely heated graphite atomizer with Zeeman effect background correction. "
Spectrochim. Acta 1993, 48B, 1381-1392.
Frech W., L´vov B.V.
"Matrix vapours and physical interference effects in graphite furnace atomic absorption spectrometry - II. Side-heated tubes."
Spectrochim. Acta 1993, 48B, 1371-1379.
Lukkari I., Ruzicka J., Christian G.D.
"Determination of total ammonium-nitrogen and free ammonia in a fermentation medium by sequential injection analysis. "
Fresenius J. Anal. Chem. 1993, 346, 813-818.
Cedergren A., Orädd C.
"Prerequisites for attaining 1:1 stoichiometry between water and iodine using dimethylformamide as solvent in coulometric Karl Fischer titrations."
Fresenius J. Anal. Chem. 1993, 346, 539-542.
Berglund I.
"Post-column treatment and detection in ion chromatography. Two-dimensional detection and eluite identification in anion chromatography."
Diss. Umeå universitet, 1993, 68 s. (ISBN 91-7174-788-5).
Genborg Å., Sharp M.
"Studies of mediated oxidation reactions of Fe(CN)64-, Ru(CN)64- and catechol at glassy-carbon electrodes coated with thin films of poly(styrenesulphonate) containing Os(bipy)33+/3+ redox sites."
Electrochim. Acta 1993, 38, 1321-1329.
Baxter D.C., Frech W.
"Coupled gas chromatography - atomic absorption spectrometry using semi-enclosed tubular atomizers: Theoretical analysis of detector performance characteristics."
Analyst 1993, 118, 495-504.
Berglund I., Dasgupta P.K., Lopez J.L., Nara O.
"Two-dimensional conductometric detection in ion chromatography: Sequential suppressed and single column detection."
Anal. Chem. 1993, 65, 1192-1198. (Texas Tech Univ)
L´vov B.V., Frech W.
"Matrix vapours and physical interference effects in graphite furnace atomic absorption spectrometry - I. End-heated tubes."
Spectrochim. Acta 1993, 48B, 425-433.
Sharp M., Lindholm-Sethson B., Lind E-L.
"An impedance spectroscopy study of charge propagation in Nafion* films containing discrete redox sites."
J. Electroanal. Chem. 1993, 345, 223-242.
Iwamoto E., Ohlsson K.E.A., Baxter D.C., Frech W.
"Spatially resolved spectroscopic measurements of CN, C2 and Al in graphite tube electrothermal atomizers under various operating conditions."
J. Anal. At. Spectrom. 1992, 7, 1063-1068.
Ohlsson K.E.A.
"An atomic and molecular absorption spectrometric study of the atomization chemistry in the graphite tube atomizer."
Diss. Umeå universitet, 1993, 147 s. (ISBN 91-7174-740-0).
Berglund I., Dasgupta P.K.
"Two-dimensional conductometric detection in ion chromatography. Postsuppressor conversion of eluite acids to a salt."
Anal. Chem. 1992, 64, 3007-3012.
Ohlsson K.E.A., Iwamoto E., Frech W., Cedergren A.
"Transfer of aluminium compounds and spike atomization in spatially isothermal graphite atomizer. "
Spectrochim. Acta 1992, 47B, 1341-1352.
Ohlsson K.E.A., Cedergren A., Frech W.
"AlH spike formation in a graphite atomizer."
Spectrochim. Acta 1992, 47B, 1525-1533.
Berglund M., Baxter D.C.
"Methods of calibration in the direct analysis of solid samples by electrothermal atomic absorption spectrometry."
Spectrochim. Acta 1992, 47B, E1567-1586.
Frech W., Cedergren A.,
"Aluminium."
In Hazardous Metals in the Environment, M. Stoeppler (Ed.). Techniques and Instrumentation in Analytical Chemistry, Vol. 12, Ch. 15, pp 451-473, Elsevier, Amsterdam, 1992.
Frech W., L'vov B.V., Romanova N.P.
"Condensation of matrix vapours in the gaseous phase in graphite furnace atomic absorption spectrometry."
Spectrochim. Acta 1992, 47B, 1461-1469.
Larsson H., Lindholm B., Sharp M.
"Electron transport in quaternized poly(4-vinylpyridine) films containing pentacyanoferrate(II/III) on electrodes. The influence of the binding type of the electroactive complex."
J. Electroanal. Chem. 1992, 336, 263-279.
Baxter D.C., Nichol R., Littlejohn D., Lüdke C., Skole J., Hoffmann E.
"Studies on the application of platform atomization to furnace atomic non-thermal excitation spectrometry for the simultaneous multi-element analysis of environmental materials."
J. Anal. At. Spectrom. 1992, 7, 727-734.
Baxter D.C., Nichol R., Littlejohn D.
"Evaluation of cold vapour furnace atomic non-thermal excitation spectrometry for the determination of mercury in environmental samples."
Spectrochim. Acta 1992, 47B, 1155-1163.
Lancaster H.L., Lukkari I., Christian G.D., Ruzicka J.
"Electrochemical and spectroscopic sensor injection: Methodology and application."
J. Flow Injection Anal. 1992, 9, 20-38.
Berglund M., Baxter D.C.
"Computer program (CHMASS) for calculating theoretical characteristic mass values in electrothermal atomic absorption spectrometry."
J. Anal. At. Spectrom. 1992, 7, 461-470.
Emteborg H., Bulska E., Frech W., Baxter D.C.
"Determination of total mercury in human whole blood by electrothermal atomic absorption spectrometry following extraction."
J. Anal. At. Spectrom. 1992, 7, 405-408.
Ohlsson K.E.A.
"Aluminium atom formation in electrothermal graphite atomizer atomic absorption spectrometry studied by in situ spectroscopic measurements of aluminium and aluminium hydride."
J. Anal. At. Spectrom. 1992, 7, 357-363
Frech W., Li K., Berglund M., Baxter D.C.
"Effects of modifier mass and temperature gradients on analyte sensitivity in electrothermal atomic absorption spectrometry."
J. Anal. At. Spectrom. 1992, 7, 141-145.
Bulska E., Emteborg H., Baxter D.C., Frech W.
"Speciation of mercury in human whole blood by capillary gas chromatography with a microwave-induced plasma emission detector system following complexometric extraction and butylation."
Analyst 1992, 117, 657-663.
Glad B., Irgum K.
"Synthesis of reactive composite membranes from Celgard 2400 and methacrylate monomers."
J. Membrane Sci. 1992, 67, 289-293.
Lindgren P.
"Diffusion scrubber-ion chromatography for the measurement of trace levels of atmospheric HCl."
Atmospheric Environment 1992, 26A, 43-49.
Lindberg-Sandström I.
"Bestämning av selen i biologiska material med grafitugnsatomabsorptionsspektrometri."
Fil lic. avhandling, Umeå universitet, 1991, 61 s.
Frech W., Baxter D.C.
"Analytische Probleme bei der Bestimmung von Blei- und Quecksilberspezies in biologischen Materialien und Umweltproben."
In B. Welz, 6. Colloquium Atomspektrometrische Spurenanalytisk, 1991, Bodenseewerk Perkin-Elmer.
Berglund I., Dasgupta P.K.
"Two-dimensional conductometric detection in ion chromatography. Postsuppressor conversion of eluite acids to a base."
Anal. Chem. 1991, 63, 2175-2183.
Irgum K., Genborg Å., Glad B., Gupta S., Dasgupta P.K.
"Effects of alternating electric fields on transport through ion exchange membranes."
Electroanalysis 1991, 3, 783-792.
Tesfalidet S., Irgum K.
"Heterogeneous hydride generation in a packed membrane cell."
Fresenius J. Anal. Chem. 1991, 341, 532-536.
Berglund M., Frech W., Baxter D.C.
"Achieving efficient, multi-element atomisation conditions for atomic absorption spectrometry using a platform-equipped, integrated-contact furnace and a palladium modifier."
Spectrochim. Acta 1991, 46B, 1767-1777.
Bulska E., Baxter D.C., Frech W.
"Capillary column gas chromatography for mercury speciation."
Anal. Chim. Acta 1991, 249, 545-554.
Lindgren P.
"Diffusion-based sampling for the determination of trace atmospheric gases. Gas-specific continuous sorption for on-line coupling to chromatographic techniques."
Diss. Umeå universitet, 1991, 105 s. (ISBN 91-7174-553-X).
Lindgren P.
"Trace level gaseous hydrochloric acid measurement standard based on sublimation of ammonium chloride."
Anal. Chem. 1991, 63, 1008-1011.
Stupar J., Frech W.
"Ultrasonic nebulizer interface system for coupling liquid chromatography and electrothermal atomic absorption spectrometry."
J. Chromatogr. 1991, 541, 243-255.
Baxter D.C., Frech W., Berglund I.
"Use of partial least squares modelling to compensate for spectral interferences in electrothermal atomic absorption spectrometry with continuum source background correction."
J. Anal. At. Spectrom. 1991, 6, 109-114.
Ohlsson K.E., Frech W.
"Quantitative in situ spectroscopic measurements and thermodynamic equilibria modelling of CN and C2 in a graphite furnace."
Spectrochim. Acta 1991, 46B, 559-581.
Sundgren H., Lundström I., Winquist F., Lukkari I., Carlsson R., Wold S.
"Evaluations of a multiple gas mixture with a simple MOSFET gas sensor array and pattern recognition."
Sensors and Actuators, 1990, 2, 115-123.
Berglund I., Larsson K., Lindberg W.
"Estimation of metabolisable energy for ruminants by near infrared reflectance photometry using multivariate methods."
J. Sci. Food Agric. 1990, 52, 339-349.
Tesfalidet S.
"Approaches to ultra-trace analysis of arsenic and other metalloids. Volatilization, enrichment, and separation techniques for sample introduction in atomic absorption spectroscopy."
Diss. Umeå universitet, 1990, 82 s. (ISBN 91-7174-495-9).
Tesfalidet S., Irgum K.
"Generation and enrichment of AsCl3 for interference-free determination of trace levels of arsenic in steel by atomic absorption spectrometry."
Fresenius J. Anal. Chem. 1990, 338, 741-744.
Sundgren H., Lundström I., Winquist F., Lukkari I., Carlsson R., Wold S.
"Evaluation of a multiple gas mixture with a simple MOSFET gas sensor array and pattern recognition."
Sensors and Actuators 1990, 2, 115-123.
Baxter D.C., Frech W.
"Critical comparison of two standard digestion procedures for the determination of total mercury in natural water samples by cold vapour atomic absorption spectrometry."
Anal. Chim. Acta 1990, 236, 377-384.
Lindholm B.
"Ac-impedance studies of charge transport and redox capacities at poly-4-vinylpyridine films on electrode surfaces."
J. Electroanal. Chem. 1990, 289, 85-101.
Baxter D.C., Frech W.
"On the direct analysis of solid samples by graphite furnace atomic absorption spectrometry."
Fresenius J. Anal. Chem. 1990, 337, 253-263.
Frech W., Baxter D.C.
"Temperature dependence of atomization efficiencies in graphite furnaces."
Spectrochim. Acta 1990, 45B, 867-886.
Öhman J., Geladi P., Wold S.
"Residual bilinearization. Part 2: Application to HPLC-diode array data and comparison with rank annihilation factor analysis."
J. Chemometrics 1990, 4, 135-146.
Baxter D.C., Öhman J.
"Multi-component standard additions and partial least squares modelling - a multivariate calibration approach to the resolution of spectral interferences in graphite furnace atomic absorption spectrometry."
Spectrochim. Acta 1990, 45B, 481-491.
Öhman J., Geladi P., Wold S.
"Residual bilinearization. Part 1: Theory and algorithms."
J. Chemometrics 1990, 4, 79-90.
Redfield D., Frech W.
"Identification and effect of pre-atomisation losses on the determination of aluminium by graphite furnace atomic absorption spectrometry."
J. Anal. At. Spectrom. 1989, 4, 685-690.
Sharp M., Lindholm B., Lind E-L.
"Aspects of charge propagation through Nafion/Os(bipy)32+/3+ films on glassy carbon electrodes."
J. Electroanal. Chem. 1989, 274, 35-60.
Baxter D.C., Frech W.
"Determination of mercury by atomic absorption spectrometry using a platinum-lined graphite furnace for in situ preconcentration. "
Anal. Chim. Acta 1989, 225, 175-183.
Frech W., Arshadi M., Baxter D.C.
"Vapour-phase temperature measurements in the evaluation of platform designs for graphite furnace atomic absorption spectrometry."
J. Anal. At. Spectrom. 1989, 4, 625-629.
Tesfalidet S., Irgum K.
"Polymer-bound tetrahydroborate for arsine generation in a flow injection system."
Anal. Chem. 1989, 61, 2079-2082.
Baxter D.C.
"Evaluation of the simplified generalised standard additions method for calibration in the direct analysis of solid samples by graphite furnace atomic spectrometric techniques. "
J. Anal. At. Spectrom. 1989, 4, 415-421.
Ohlsson K.E.A., Frech W.
"Photographic observation of molecular spectra in inverse Zeeman-effect graphite furnace atomic absorption spectrometry. "
J. Anal. At. Spectrom. 1989, 4, 379-385.
Dedina J., Frech W., Lundberg E., Cedergren A.
"Atomisation of selenium hydride in the graphite furnace."
J. Anal. At. Spectrom. 1989, 4, 143-148.
Dasgupta P.K., Lindgren P.
"Inlet pressure effects on the collection efficiency of diffusion scrubbers."
Environ. Sci. Technol. 1989, 23, 895-897.
Wennrich R., Frech W., Lundberg E.
"Spectral interferences in graphite furnace Zeeman effect atomic absorption spectrometry."
Spectrochim. Acta 1989, 44B, 239-246.
Lind E-L.
"Charge propagation studies of glassy-carbon electrodes coated with Nafion films."
Lic avhandling, Umeå universitet, 1989. 97 s.
Sharp M.
"Studies of the kinetics of mediated electrothermal oxidation at polymer-coated electrodes."
In Dryhurst, G. and Niki, K. "Redox Chemistry and Interfacial Behaviour of Biological Molecules", Plenum Publishing Corporation, 1988.
Lundberg E., Frech W., Harnly J.M.
"Simultaneous multi-element analysis by continuum source atomic absorption spectrometry with a spatially and temporally isothermal graphite furnace."
J. Anal. At. Spectrom. 1988, 3, 1115-1119.
Öhman J., Lindberg W., Wold S.
"Data reduction of bilinear matrices prior to calibration."
Anal. Chem. 1988, 60, 2756-2760.
Lindgren P.F., Dasgupta P.K.
"Measurement of atmospheric sulfur dioxide by diffusion scrubber coupled ion chromatography."
Anal. Chem. 1988, 61, 19-24.
Lindberg I., Lundberg E., Arkhammar P., Berggren P-O.
"Direct determination of selenium in solid biological materials by graphite furnace atomic absorption spectrometry."
J. Anal. At. Spectrom. 1988, 3, 497-501.
Tesfalidet S., Irgum K.
"Volatilization of arsenic as the trichloride for sample introduction in atomic spectroscopy."
Anal. Chem. 1988, 60, 2031-2035.
Nygren O., Nilsson C-A., Frech W.
"On-line interfacing of a liquid chromatograph to a continuously heated graphite furnace atomic absorption spectrophotometer for element-specific detection. "
Anal. Chem. 1988, 60, 2204-2208.
Lukkari I., Lindberg W.
"Multicomponent determinations in flow systems by partial least squares modelling."
Anal. Chim. Acta 1988, 211, 1-10.
Lindholm B.
"Chronocoulometric and rotating disc electrode determination of the charge propagation current through poly-4-vinylpyridine films containing hexachloroiridate anions."
J. Electroanal. Chem. 1988, 250, 341-354.
Lundberg E., Frech W., Baxter D.C., Cedergren A.
"Spatially and temporally constant-temperature graphite furnace for atomic absorption/emission spectrometry. "
Spectrochim. Acta 1988, 43B, 451-457.
Lindholm B.
"Studies of chemicall modified electrodes based on thin cross-linked polyvinylpyridine films. "
Diss. Umeå universitet, 1988, 95 s. (ISBN 91-7174-356-1).
Frech W., Baxter D.C., Lundberg E.
"Spatial and temporal non-isothermality as limiting factors for absolute analysis by graphite furnace atomic absorption spectrometry. "
J. Anal. At. Spectrom. 1988, 3, 21-25.
Baxter D.C.
"Experimental and theoretical intensities for graphite furnace atomic emission spectrometry."
Spectrochim. Acta 1988, 43B, 129-139.
Baxter D.C.
"Advantages of spatially isothermal graphite furnaces for atomic spectrometry."
Diss. Umeå universitet, 1988, 189 s. (ISBN 91-7174-319-7).
Nygren O.
"Organometallic compounds in the work environment. Development of selective analytical methods based on atomic absorption spectrometric detection. "
Diss. Umeå universitet, 1987, 165 s. Arbete och Hälsa 1987:27. (ISBN 91-7464-357-6).
Frech W., Baxter D.C.
"Solution to spatial non-isothermality in electrothermal atomic spectrometry. "
Analytiktreffen 1986 und IX CANAS, Neubrandenburg. Wissenschaftliche Beiträge der Karl-Marx-Universität, Band 1, 1987, pp. 47-60.
Lindholm B., Sharp M., Armstrong R.D.
"AC-impedance studies of carbon electrodes coated with poly-4-vinylpyridine films containing the Fe(CN)63-/4- redox couple."
J. Electroanal. Chem. 1987, 235, 169-177.
Baxter D.C., Frech W.
"Temperature gradients as a limiting factor for absolute analysis by graphite furnace atomic absorption spectrometry. "
Spectrochim. Acta 1987, 42B, 1005-1010.
Dedina J., Frech W., Cedergren A., Lindberg I., Lundberg E.
"Determination of selenium by graphite furnace atomic absorption spectrometry. Part 2. Role of nickel for analyte stability. "
J. Anal. At. Spectrom. 1987, 2, 435-439.
Baxter D.C., Frech W.
"Analysis of solid samples by graphite furnace atomic emission spectrometry."
Fresenius Z. Anal. Chem. 1987, 328, 324-329.
Frech W., Baxter D.C.
"Evaluation of the solid sampling technique for the determination of aluminium in biological materials by atomic absorption and atomic emission spectrometry. "
Fresenius Z. Anal. Chem. 1987, 328, 400-404.
Sharp M.
"Studies of the limiting currents associated with several oxidation reactions mediated by tris(2,2'-bipyridyl)iron(III) incorporated in Nafionâ films on carbon electrodes. "
J. Electroanal. Chem. 1987, 230, 109-124.
Dedina J., Frech W., Lindberg I., Lundberg E., Cedergren A.
"Determination of selenium by graphite furnace atomic absorption spectrometry. Part I. Interaction between selenium and carbon."
J. Anal. At. Spectrom. 1987, 2, 287-291.
Nordin-Andersson I., Cedergren A.
"Coulometric determination of trace water in active carbonyl compounds using modified Karl Fischer reagents."
Anal. Chem. 1987, 59, 749-753.
Irgum K.
"N-substituted aminoalkylsulfonates as eluents in membrane-suppressed anion chromatography."
Anal. Chem. 1987, 59, 358-362.
Irgum K.
"Gradient membrane-suppressed anion chromatography with N-substituted aminoalkylsulfonic acid salts as eluents."
Anal. Chem. 1987, 59, 363-366.
Cedergren A., Frech W.
"Determination of aluminium in biological materials by graphite furnace atomic absorption spectrometry (GFAAS)."
Pure & Appl. Chem. 1987, 59, 221-228.
Armstrong R.D., Lindholm B., Sharp M.
"Impedance characteristics of a modified electrode."
J. Electroanal. Chem. 1986, 202, 69-74.
Lundberg E., Bergmark B.
"Determination of total tin in geological materials by electrothermal atomic absorption spectrometry. "
Anal. Chim. Acta 1986, 188, 111-118.
Petersson M.
"Kinetic studies and applications of ferrocene-platinum chemically modified electrodes."
Lic avhandling, Umeå universitet, 1986, 73 s.
Irgum K.
"Reactive polymers in analytical chemistry. New applications in sampling, separation, buffering, and purification."
Diss. Umeå universitet, 1986, 107 s. (ISBN 91-7174-234-4).
Nordin-Andersson I.
"Development of methods for determination of water based on flow injection analysis and Karl Fischer reaction."
Diss. Umeå universitet, 1986, 99 s. (ISBN 91-7174-239-5).
Lindholm B., Sharp M.
"Electrocatalytic oxidation of cytochrome-c at a quaternized poly-4-vinylchloride/ferricyanide modified gold surface."
J. Electroanal. Chem. 1986, 215, 385-391.
Petersson M.
"Electrocatalytic oxidation of ascorbic acid and voltammetric determination with a ferrocene-modified platinum electrode."
Anal. Chim. Acta 1986, 187, 333-338.
Lundberg E., Frech W., Cedergren A.
"Grafitugnstekniken är nu väletablerad. "
Kemisk Tidskrift 1986, 9, 42.
Frech W., Baxter D.C., Hütsch B.
"Spatially isothermal graphite furnace for atomic absorption spectrometry using side-heated cuvettes with integrated contacts. "
Anal. Chem. 1986, 58, 1973-1977.
Cedergren A., Lindberg I., Lundberg E., Baxter D.C., Frech W.
"Investigations of reactions involved in graphite furnace atomic absorption procedures. "
Anal. Chim. Acta 1986, 180, 373-388.
Frech W., Lindberg A.O., Lundberg E., Cedergren A.
"Atomization mechanisms and gas phase reactions in graphite furnace atomic absorption spectrometry. "
Fresenius Z. Anal. Chem. 1986, 323, 716-725.
Slanina P., Frech W., Ekström L-G., Lööf L., Slorach S., Cedergren A.
"Dietary citric acid enhances absorption of aluminium in antacids. "
Clin. Chem. 1986, 32, 539-541.
Lundberg E., Baxter D.C., Frech W.
"Constant-temperature atomiser-computer controlled échelle spectrometer system for graphite furnace atomic emission spectrometry."
J. Anal. At. Spectrom. 1986, 1, 105-113.
Lindberg W., Öhman J., Wold S.
"Multivariate resolution of overlapped peaks in liquid chromatography using diode array detection. "
Anal. Chem. 1986, 58, 299-303.
Lindholm B., Sharp M.
"Simpe preparation and characteristics of stabilized, protonated poly-4-vinylpyridine films containing electroactive anions on glassy carbon electrode surfaces. "
J. Electroanal. Chem. 1986, 198, 37-52.
Frech W., Lundberg E., Cedergren A.
"Investigation of interference effects in the presence of sodium and copper chlorides using platform graphite furnace AAS."
Can. J. Spectrosc. 1985, 30, 123-129.
Frech W., Lundberg E., Cedergren A.
"Investigations of some methods used to reduce interference effects in graphite furnace atomic absorption spectrometry."
Prog. analyt. atom. Spectrosc. 1985, 8, 257-370.
Nordin-Andersson I., Cedergren A.
"Spectrophotometric determination of water by flow injection analysis using conventional and pyridine-free two-component Karl Fischer reagents. "
Anal. Chem. 1985, 57, 2571-2575.
Lindberg W., Öhman J., Wold S., Martens H.
"Simultaneous determination of five different food proteins by high-performance liquid chromatography and partial least-squares multivariate calibration."
Anal. Chim. Acta 1985, 174, 41-51.
Sharp M., Montgomery D.D., Anson F.C.
"Kinetic studies of oxidations of catechol and L-dopa as mediated by IrCl62- at polymer-coated glassy carbon electrodes. "
J. Electroanal. Chem. 1985, 194, 247-259.
Slanina P., Frech W., Bernhardson Å., Cedergren A., Mattsson P.
"Influence of dietary factors on aluminium absorption and retention in the brain and bone of rats."
Acta Pharmacol. Toxicol. 1985, 56, 331-336.
Irgum K., Lindgren M.
"Solid sorbent for sampling of sulfur dioxide in occupational hygiene. "
Anal. Chem. 1985, 57, 1330-1335.
Irgum K.
"Pararosaniline colorimetric determination of sulfur dioxide stabilized with ethanedial."
Anal. Chem. 1985, 57, 1335-1338.
Irgum K.
"Stabilized gravimetric standard for sulfites and sulfur dioxide."
Anal. Chem. 1985, 57, 1496-1498.
Frech W., Ottaway J.M., Bezur L., Marshall J.
"Determination of manganese in urine by electrothermal atomic emission spectrometry."
Can. J. Spectrosc. 1985, 30, 7-12.
Lindberg W.
"Optimization, curve resolution and calibration in liquid chromatography. "
Diss. Umeå universitet, 1985. 108 s. (ISBN 91-7174-191-7).
Baxter D.C., Frech W., Lundberg E.
"Determination of aluminium in biological materials by constant-temperature graphite furnace atomic-emission spectrometry."
Analyst 1985, 110, 475-482.
Lindberg W., Öhman J., Wold S.
"Determination of the proteins in mixtures of meat, soymeal, and rind from their chromatographic amino-acid pattern by the partial least-squares method. "
Anal. Chim. Acta 1985, 171, 1-11.
Johansson B., Lundmark L.
"Direct and indirect registration of currents between dental metallic restorations in the oral cavity."
Scand. J. Dent. Res. 1984, 92, 476-479.
Nordin-Andersson I., Åström O., Cedergren A.
"Determination of water by flow injection analysis with the Karl Fischer reagent. Minimization of effects caused by differences in physical properties of the samples."
Anal. Chim. Acta 1984, 162, 9-18.
Frech W., Lundberg E., Cedergren A.
"Chemische Reaktionen im Graphitrohrofen und deren analytische Bedeutung bei der Atomabsorptionsspektrometrie. "
Fortschritte in der atomspektrometrischen Spurenanalytik. B. Welz (Ed.). Band 1, 1984, pp. 49-72. Verlag Chemie, Weinheim, 1984.
Slanina P., Falkeborn Y., Frech W., Cedergren A.
"Aluminium concentrations in the brain and bone of rats fed citric acid, aluminium citrate or aluminium hydroxide. "
Fd Chem. Toxic. 1984, 22, 391-397.
Lundberg E., Frech W., Lindberg I.
"Determination of lead in biological materials by constant-temperature electrothermal atomic absorption spectrometry. "
Anal. Chim. Acta 1984, 160, 205-215.
Cedergren A., Frech W., Lundberg E.
"Estimation of oxygen pressure in graphite furnaces for atomic absorption spectrometry. "
Anal. Chem. 1984, 56, 1382-1387.
Sundén T., Cedergren A., Siemer D.D.
"Carbon dioxide permeable tubing for postsuppression in ion chromatography."
Anal. Chem. 1984, 56, 1085-1089.
Siemer D.D., Lundberg E., Frech W.
"Gas phase temperatures in Massmann furnaces equipped with L´vov platforms."
Appl. Spectrosc. 1984, 38, 389-391.
Siemer D.D., Frech W.
"Improving the performance of the CRA atomizer by reducing the rate of diffusional atom loss and delaying analyte volatilization."
Spectrochim. Acta 1984, 39B, 261-269.
Zhou N.G., Frech W., de Galan, L.
"On the relationship between heating rate and peak height in electrothermal atomic absorption spectroscopy. "
Spectrochim. Acta 1984, 39B, 225-235.
Åström O.
"New approaches to analytical methods for bismuth, waters, acids and bases using flow injection analysis."
Diss. Umeå universitet, 1983. 68 s. (ISBN 91-7174-127-5).
Samuelsson R.
"The use of polarographic techniques for the determination of n-nitrosamines."
Diss. Umeå universitet, 1983. 76 s. (ISBN 91-7174-143-7).
Frech W., Cedergren A., Lundberg E., Siemer D.D.
"Electrothermal atomic absorption spectroscopy - present understanding and future needs."
Spectrochim. Acta 1983, 38B, 1435-1446.
Zhou N.G., Frech W., Lundberg E.
"Rapid determination of lead, bismuth, antimony and silver in steels by flame atomic absorption spectrometry combined with flow injection analysis."
Anal. Chim. Acta 1983, 153, 23-31.
Frech W., Cedergren A., Lundberg E.
"Vapour phase interference effects in electrothermal atomic absorption spectroscopy (AAS). "
Analytiktreffen, Neubrandenburg 1982. Wissenschaftliche Beiträge der Karl-Marx-Universität Leipzig. Reihe Naturwissenschaften. Leipzig, 1983, pp. 102-110.
Rappe C., Samuelsson R.
"Voltammetry and Polarography. Environmental carcinogens, selected methods of analysis."
IARC Scientific Publications No. 45, Ch. 5, pp. 463-467, Lyon, 1983.
Lindberg A.O.
"Development of detector systems for trace carbon dioxide with applications to enzymatic oxalate and urea determinations."
Diss. Umeå universitet, 1983. 90 s. (ISBN 91-7174-126-7).
Lindberg A.O.
"Enzymatic determination of oxalate in urine by headspace sampling of carbon dioxide and flame ionization detection. "
Anal. Chim. Acta 1983, 152, 123-131.
Lindberg A.O.
"A detector system for oxalic acid based on the determination of carbon dioxide as methane after degradation of oxalate with glass-bound oxalate decarboxylase. "
Anal. Chim. Acta 1983, 152, 113-122.
Sharp M.
"Determination of the charge-transfer kinetics of ferrocene at platinum and vitreous carbon electrodes by potential step chronocoulometry. "
Electrochim. Acta 1983, 28, 301-308.
Irgum K.
"Instrument for relative humidity measurement."
Anal. Chem. 1983, 55, 1186-1187.
Sjöström M., Wold S., Lindberg W., Persson J-Å., Martens H.
"A multivariate calibration problem in analytical chemistry solved by partial least-squares models in latent variables. "
Anal. Chim. Acta 1983, 150, 61-70.
Lindberg W., Persson J-Å., Wold S.
"Partial least-squares method for spectrofluorimetric analysis of mixtures of humic acid and ligninsulfonate."
Anal. Chem. 1983, 55, 643-648.
Petersson M.
"A ferrocene-modified platinum electrode as a potentiometric sensor for L-ascorbic acid."
Anal. Chim. Acta 1983, 147, 359-363.
Sundén T., Lindgren M., Cedergren A., Siemer D.D.
"Separation of sulfite, sulfate, and thiosulfate by ion chromatography with gradient elution."
Anal. Chem. 1983, 55, 2-4.
Persson J-Å.
"An experimental and theoretical investigation of interference effects in electrothermal atomic absorption spectrometry with special emphasis on aluminium, phosphorus and arsenic. "
Diss. Umeå universitet, 1982. 129 s. (ISBN 91-7174-110-0).
Lindgren M., Cedergren A., Lindberg J.
"Conditions for sulfite stabilization and determination by ion chromatography."
Anal. Chim. Acta 1982, 141, 279-286.
Frech W., Jonsson S.
"A new furnace design for constant temperature electrothermal atomic absorption spectroscopy."
Spectrochim. Acta 1982, 37B, 1021-1028.
Frech W., Cedergren A., Cederberg C., Vessman J.
"Evaluation of some critical factors affecting determination of aluminium in blood, plasma or serum by electrothermal atomic absorption spectroscopy."
Clin. Chem. 1982, 28, 2259-2263.
Lundmark L., Johansson B., Stenman E., Bergman M.
"Convenient instrument for oral galvanism measurements."
Scand. J. Dent. Res. 1982, 90, 468-471.
Lundberg E., Bergmark B., Frech W.
"Investigations of reactions involved in electrothermal atomic absorption procedures. Part 11. A theoretical and experimental investigation of factors influencing the determination of tin."
Anal. Chim. Acta 1982, 142, 129-142.
Frech W., Zhou N.G., Lundberg E.
"A critical study of some methods used to investigate atom formation processes in GFAAS."
Spectrochim. Acta 1982, 37B, 691-702.
Samuelsson R., Sundström O.
"Pulse polarographic behaviour of n-nitrosamines in mixtures of water with methanol and acetonitrile. "
Anal. Chim. Acta 1982, 138, 375-380.
Persson J-Å., Irgum K.
"Determination of dimethylarsinic acid in seawater in the sub-ppb range by electrothermal atomic absorption spectrometry after preconcentration on an ion-exchange column. "
Anal. Chim. Acta 1982, 138, 111-119.
Åström O.
"Flow injection analysis for the determination of bismuth by atomic absorption spectrometry with hydride generation."
Anal. Chem. 1982, 54, 190-193.
Kågevall I., Åström O., Cedergren A.
"Minimization of interference effects from iodine-consuming samples in the determination of water with the Karl Fischer reagent in a flow-injection system."
Anal. Chim. Acta 1981, 132, 215-218.
Frech W., Lundberg E., Barbooti M.M.
"Direct determination of trace metals in solid samples by atomic absorption spectrometry with electrothermal atomizers. Part 4. Interference effects in the determination of lead and bismuth in steels."
Anal. Chim. Acta 1981, 131, 45-52.
Lindberg A.O.
"A sensitive and accurate automatic coulometric detector system for enzymatically produced carbon dioxide. "
Anal. Chim. Acta 1981, 131, 133-139.
Koreckova J., Frech W., Lundberg E., Persson J-Å., Cedergren A.
"Investigations of reactions involved in electrothermal atomic absorption procedures. Part 10. Factors influencing the determination of arsenic."
Anal. Chim. Acta 1981, 130, 267-280.
Lundberg E., Frech W.
"Influence of instrumental response time on interference effects in graphite furnace atomic absorption spectrometry."
Anal. Chem. 1981, 53, 1437-1442.
Lindberg W., Johansson E., Johansson K.
"Application of statistical optimization methods on the separation of morphine, codeine, noscapine and papaverine in reversed-phase ion-pair chromatography."
J. Chrom. 1981, 211, 201-212.
Fredriksson S-Å., Cedergren A.
"Effect of carrier gas flow geometry on the response of sulfur flame photometric detectors for gas chromatography."
Anal. Chem. 1981, 53, 614-618.
Cedergren A., Frech W., Lundberg E., Persson J-Å.
"Investigations of reactions involved in electrothermal atomic absorption procedures. Part 9. An atomization system with controlled atmosphere and temperature for the determination of volatile elements in complex matrices. "
Anal. Chim. Acta 1981, 128, 1-8.
Sharp M., Petersson M.
"Voltammetric determinations of surface charge-transfer kinetics for platinum-ferrocene chemically modified electrodes in sulpholane."
J. Electroanal. Chem. 1981, 122, 409-415.
Johansson K., Lindberg W., Rappe C., Nygren M.
"Determination of aromatic diamines and other compounds in hair dyes using liquid chromatography. "
ACS Symp. Ser., Vol. 149 "Chemical Hazards in the Workplace - Measurement and Control." G. Choudhary (Ed.). American Chemical Society, 1981, pp. 401-411.
Samuelsson R., Osteryoung J.
"Determination of N-nitrosamines by high-performance liquid chromatographic separation with voltammetric detection."
Anal. Chim. Acta 1981, 123, 97-105.
Samuelsson R., O´Dea J., Osteryoung J.
"Rapid scan square wave voltammetric detector for high-performance liquid chromatography."
Anal. Chem. 1980, 52, 2215-2216.
Ottaway J.M., Bezur L., Fakhrul-Aldeen R., Frech W., Marshall J.
"Carbon furnace atomic emission determination of trace elements in blood and urine."
Trace Element Analytical Chemistry in Medicine and Biology. P. Brätter and P. Schramel, (Eds.). Walter de Gruyter & Co, Berlin, 1980, pp. 575-586.
Frech W., Persson J-Å., Cedergren A.
"Chemical reactions in atom reservoirs used in atomic absorption spectroscopy."
Prog. Analyt. Atom. Spectrosc. 1980, 3, 279-297.
Persson J-Å., Frech W., Pohl G., Lundgren K.
"Determination of aluminium in wood pulp liquors using graphite furnace atomic-absorption spectrometry. "
Analyst 1980, 105, 1163-1170.
Lindgren M.
"Jonkromatografisk vattenanalys."
Vatten 1980, 36, 249-264.
Persson J-Å., Frech W.
"Investigations of reactions involved in electrothermal atomic absorption procedures. Part 8. A theoretical and experimental study of factors influencing the determination of phosphorus."
Anal. Chim. Acta 1980, 119, 75-89.
Samuelsson R., Rydström T.
"Pulse polarographic studies of N-nitrosamines."
Anal. Chem. Symp. Ser., Vol. 2, " Electroanalysis in Hygiene, Clinical and Pharmaceutical Chemistry." Ed. W.F. Smyth, Elsevier, Amsterdam, 1980. pp 435-444.
Sharp M., Petersson M., Edström K.
"A comparison of the charge transfer kinetics between platinum and ferrocene in solution and in the surface attached state."
J. Electroanal. Chem. 1980, 109, 271-288.
Lundberg E., de Mare J.
"Interval estimates in the spectroscopy calibration problem."
Scand. J. Statist 1980, 7, 40-42.
Kågevall I., Åström O., Cedergren A.
"Determination of water by flow-injection analysis with the Karl Fischer reagent."
Anal. Chim. Acta 1980, 114, 199-208.
Frech W., Cedergren A.
"Investigations of reactions involved in flameless atomic absorption procedures. Part 7. Theoretical and experimental study of factors influencing the determination of silicon."
Anal. Chim. Acta 1980, 113, 227-235.
Lundberg E., Lundmark L.
"Automatic gas control unit for electrothermal atomizers."
Chem. Biomed. Environ. Instrum. 1979, 9, 91-93.
Samuelsson R.
"Pulse polarographic determination of nitrosamines. Part 2. Methods for the determination of N-Nitrosodiphenylamine and N-Nitrosodibutylamine. "
Anal. Chim. Acta 1979, 108, 213-219.
Lundberg E.
"Instrumental developments in graphite furnace atomic absorption specroscopy with applications to direct determinations of trace metals in solid samples."
Diss. Umeå universitet, 1979. 89 s. (ISBN 91-7174-032-5).
Lundberg E., Frech W.
"Direct determination of trace metals in solid samples by atomic absorption spectrometry with electrothermal atomizers. Part 3. Application of an autosampler to the determination of silver, bismuth, cadmium and zinc in steels. "
Anal. Chim. Acta 1979, 108, 75-85.
Åström O.
"Single-point titrations. Part 4. Determination of acids and bases with flow injection analysis."
Anal. Chim. Acta 1979, 105, 67-75.
Lidén S., Lundberg E.
"Penetration of chromium in intact human skin in vivo."
J. Invest. Dermatol. 1979, 72, 42-45.
Lundberg E., Frech W.
"Direct determination of trace metals in solid samples by atomic absorption spectrometry with electrothermal atomizers. Part II. Determination of lead in steels and nickel-base alloys."
Anal. Chim. Acta 1979, 104, 75-84.
Lundberg E., Frech W.
"Direct determination of trace metals in solid samples by atomic absorption spectrometry with electrothermal atomizers. Part I. Investigations of homogeneity for lead and antimony in metallurgical materials. "
Anal. Chim. Acta 1979, 104, 67-74.
Samuelsson R.
"Pulse polarographic determinations of nitrosamines. Part I. Determination of N-Nitroso-diethanolamines in grinding fluids."
Anal. Chim. Acta 1978, 102, 133-140.
Sharp M., Petersson M., Edström K.
"Preliminary determinations of electron transfer kinetics involving ferrocene covalently attached to a platinum surface."
J. Electroanal. Chem. 1979, 95, 123-130.
Fredriksson S-Å., Cedergren A.
"Formation of S under conditions appropriate to flame photometric sulphur detection."
Anal. Chim. Acta 1978, 100, 429-438.
Lundberg E.
"Application of a versatile drift-compensating digital peak reader to the direct atomization of solids in graphite furnace atomic absorption spectroscopy."
Appl. Spectrosc. 1978, 32, 276-281.
Cedergren A.
"Reaction rates between water and some modified rapidly-reacting Karl Fischer reagents."
Talanta 1978, 25, 229-232.
Åström O.
"Single-point titrations. Part III. Experimental determination of acids."
Anal. Chim. Acta 1978, 97, 259-267.
Samuelsson R., Sharp M.
"The effect of electrode material on redox reactions of quinones in acetonitrile."
Electrochim. Acta 1978, 23, 315-317.
Lundberg E.
"A simple modification of the Varian AA-6 spectrophotometer - faster response time to flameless atomizer absorption signals. "
Chem. Instrum. 1978, 8, 197-204.
Sharp M.
"The determination of electron transfer rates for several quinonoid compounds at platinum and gold electrodes. "
J. Electroanal. Chem. 1978, 88, 193-203.
Sharp M.
"A possible orientation effect in redox reactions of molecules which are chemically bound to electrode surfaces. "
Electrochim. Acta 1978, 23, 287-288.
Lindberg A.O., Cedergren A.
"Automatic coulometric titration with photometric end-point detection. Part 2. Coulometric determination of nanomole amounts of carbon dioxide by non-aqeuous titration."
Anal. Chim. Acta 1978, 96, 327-333.
Lindberg A.O.
"Automatic coulometric titration with photometric end-point detection. Part I. A coulometric titrator based on differential photometric detection."
Anal. Chim. Acta 1978, 96, 319-325.
Frech W.
"The application of high temperature equilibrium calculations for establishing optimum procedures in flameless atomic absorption spectrometry exemplified by determinations of Pb, Sb, Bi and Al in chloride media."
Diss. Umeå universitet, 1977.
Johansson K., Frech W., Cedergren A.
"Investigations of reactions involved in flameless atomic absorption procedures. Part VI. A study of some factors influencing the determination of lead in sulphate matrices."
Anal. Chim. Acta 1977, 94, 245-256.
Cedergren A., Sundin G.
"Potentiometric titration of oxalate with lanthanum(III)."
Anal. Chim. Acta 1977, 94, 467-469.
Persson J-Å., Frech W., Cedergren A.
"Investigations of reactions involved in flameless atomic absorption procedures. Part V. An experimental study of factors influencing the determination of aluminium. "
Anal. Chim. Acta 1977, 92, 95-104.
Persson J-Å., Frech W., Cedergren A.
"Investigations of reactions involved in flameless atomic absorption procedures. Part IV. A theoretical study of factors influencing the determination of aluminium. "
Anal. Chim. Acta 1977, 92, 85-93.
Zetterlund B., Winberg J., Lundgren G., Johansson G.
"Lead in umbilical cord blood correlated with the blood lead of the mother in areas with low, medium or high atmospheric pollution. "
Acta Paediatr. Scand. 1977, 66, 169-175.
Persson J-Å., Frech W., Cedergren A.
"Determinations of aluminium in low-alloy and stainless steels by flameless atomic absorption spectrometry."
Anal. Chim. Acta 1977, 89, 119-126.
Cedergren A.
"A modified oxidative microcoulometric method for the determination of sulphur in hydrocarbons containing large amounts of chlorine. "
Talanta 1977, 24, 21-24.
Frech W., Cedergren A.
"Investigations of reactions involved in flameless atomic absorption procedures. Part III. A study of factors influencing the determination of lead in strong sodium chloride solutions. "
Anal. Chim. Acta 1977, 88, 57-67.
Åström O.
"Single-point titrations. Part II. Experimental determination of bases."
Anal. Chim. Acta 1977, 88, 17-23.
Cedergren A., Sundén T.
"Equilibrium studies of sulphur, carbon, oxygen, nitrogen and hydrogen species under the conditions of the reductive sulphur method."
Anal. Chim. Acta 1977, 88, 25-31.
Bergner K.
"Comparisons of some sodium-selective electrodes in concentrated solutions for use in automatic monitoring systems. "
Anal. Chim. Acta 1976, 87, 1-6.
Lundberg E., Johansson G.
"Simultaneous determination of manganese, cobalt, and copper with a computer-controlled flameless atomic absorption spectrophotometer. "
Anal. Chem. 1976, 48, 1922-1926.
Sharp M.
"Voltammetric studies of radical-anion generation on graphite electrodes."
Electrochim. Acta 1976, 21, 973-977.
Sharp M.
"Studies of solid-state ion-selective electrodes prepared from semiconducting organic radical-ion salts. "
Anal. Chim. Acta 1976, 85, 17-30.
Johansson G., Edström K., Ögren L.
"An enzyme reactor electrode for determination of amino acids."
Anal. Chim. Acta 1976, 85, 55-60.
Lundgren G.
"Direct determination of cadmium in blood with a temperature-controlled heated graphite-tube atomizer. "
Talanta 1976, 23, 309-312.
Johansson G., Ögren L.
"An enzyme reactor electrode for urea determinations. "
Anal. Chim. Acta 1976, 84, 23-29.
Frech W., Lundgren G., Lunner S-E.
"Routine use of flameless AAS for the determination of lead in high and low alloy steels."
Atom. Abs. Newsletter 1976, 15, 57-60.
Cedergren A., Fredriksson S.Å.
"Trace analysis for chlorinated hydrocarbons in air by quantitative combustion and coulometric chloride determination. Application to standardization of vinyl chloride permeation tubes. "
Talanta 1976, 23, 217-223.
Frech W., Cedergren A.
"Investigations of reactions involved in flameless atomic absorption procedures. Part II. An experimental study of the role of hydrogen in eliminating the interference from chlorine in the determination of lead in steel."
Anal. Chim. Acta 1976, 82, 93-102.
Frech W., Cedergren A.
"Investigations of reactions involved in flameless atomic absorption procedures. Part I. Application of high-temperature equilibrium calculations to a multicomponent system with special reference to the interference from chlorine in the flameless atomic absorption method for lead in steel. "
Anal. Chim. Acta 1976, 82, 83-92.
Lundgren G.
"Temperature controlled heating of the graphite tube atomizer for flameless atomic absorption spectroscopy, with special application to the determination of trace metals in biological materials."
Diss, Umeå universitet, 1975.
Åström O.
"An investigation of porous membranes saturated with hydrophobic solvents as ion-selective electrodes. "
Anal. Chim. Acta 1975, 80, 245-253.
Johansson G., Karlberg B., Wikby A.
"The hydrogen-ion selective glass electrode."
Talanta 1975, 22, 953-966.
Karlberg B.
"Long-term stability of glass electrodes in aqueous media. "
Talanta 1975, 22, 1023-1027.
Cedergren A.
"A theoretical study of the interference from chlorine in the oxidative coulometric method for trace determination of sulphur in hydrocarbons. "
Talanta 1975, 22, 967-971.
Burman J-O., Johansson G.
"Determination of nitrate in pickling baths with a nitrate-selective electrode and a standard addition procedure. "
Anal. Chim. Acta 1975, 80, 215-221.
Wikby A.
"Surface-layer properties of glass electrodes responsive to sodium and hydrogen ions. "
Talanta 1975, 22, 663-667.
Persson J-Å., Cedergren A.
"Undersökning av tillämpbarheten av jonselektiv kloridelektrod för bestämning av klorid i terbutalinsulfat. "
Rapport, Umeå universitet, 1975.
Lundmark L.
"Automatic exponeringskalkylator ger förenklat mörkrumsarbete. "
Radio & Television 1975, Nr. 9, 76-87.
Boksay Z., Varga M., Wikby A.
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J. Non-Crystalline Solids 1975, 17, 349-358.
Frech W.
"Rapid determination of bismuth in steels by flameless atomic absorption."
Z. Anal. Chem. 1975, 275, 353-357.
Frech W.
"Rapid determination of lead in steel by flameless atomic absorption spectrometry."
Anal. Chim. Acta 1975, 77, 43-52.
Johansson G.
"An assessment of the quinhydrone electrode for measurements in pickling baths."
Anal. Chim. Acta 1975, 77, 283-287.
Sharp M.
"An examination of some active organometallic substances for ion-selective electrodes. "
Anal. Chim. Acta 1975, 76, 165-176.
Cedergren A., Wikby A., Bergner K.
"Comparison of high precision coulometric and West-Gaeke methods with gravimetric method for preparation of standard sulfur dioxide gas blends using permeation tubes. "
Anal. Chem. 1975, 47, 100-106.
Wikby A.
"The resistance of the surface layers of glass electrodes."
Phys. Chem. Glasses 1974, 15, 37-41.
Cedergren A.
"Some coulometric methods for trace determination of nitrogen, chloride, sulphur and water."
Diss. Umeå universitet, 1974.
Boström C-Å., Cedergren A., Johansson G., Pettersson L.
"Rapid coulometric method for the Kjeldahl determination of nitrogen. "
Talanta 1974, 21, 1123-1127.
Wikby A.
"Chemical and electrical properties of the surface layers of some glass electrodes."
Electrochim. Acta 1974, 19, 329-336.
Wikby A., Karlberg B.
"Correlation between the gel layer properties and the electrochemical behaviour of hydrogen selective glass electrodes. "
Electrochim. Acta 1974, 19, 323-328.
Lundgren G., Lundmark L., Johansson G.
"Temperature controlled heating of the graphite tube atomizer in flameless atomic absorption spectrometry."
Anal. Chem. 1974, 46, 1028-1031.
Lundgren G., Johansson G.
"A temperature-controlled graphite tube furnace for the determination of trace metals in solid biological tissue. "
Talanta 1974, 21, 257-264.
Karlberg B.
"Time lag of ion exchange in the gel layer of hydrogen-ion-selective glass electrodes."
J. Electroanal. Chem. 1974, 49, 1-5.
Johansson G., Backén W.
"Single-point titrations. Part I. The determination of bases."
Anal. Chim. Acta 1974, 69, 415-424.
Frech W.
"Rapid determination of antimony in steel by flameless atomic absorption."
Talanta 1974, 21, 565-571.
Cedergren A.
"Comparison between amperometric and true potentiometric end-point detection in the determination of water by the Karl Fischer method. "
Talanta 1974, 21, 553-563.
Cedergren A.
"Coulometric trace determination of water by using Karl Fischer reagent and potentiometric end-point detection."
Talanta 1974, 21, 367-375.
Cedergren A.
"Reaction rates between water and the Karl Fischer reagent."
Talanta 1974, 21, 265-271.
Wikby A., Karlberg B.
"Comment on the paper "Dynamic response of the glass electrode" by G. Johansson and K. Norberg. "
J. Electroanal. Chem. 1973, 43, 325-326.
Sharp M.
"An approach to ion-selective electrode development."
Diss. Umeå universitet, 1973.
Sharp M.
"A study of liquid-membrane perchlorate-selective electrodes made from an organic radical ion salt."
Anal. Chim. Acta 1973, 65, 405-416.
Falkmer S., Emdin S., Havu N., Lundgren G., Marques M., Östberg Y., Steiner D.F., Thomas N.W.
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Amer. Zool. 1973, 13, 625-638.
Karlberg B.
"Respons- och interdiffusionsegenskaper hos vätejonselektiva glaselektroder. "
Diss. Umeå universitet, 1973.
Karlberg B., Wikby A.
"Response and sorption studies on glass electrodes in isopropanol."
Acta Chem. Scand. 1973, 27, 1855-1859.
Karlberg B.
"Ion-exchange properties of the gel layer of some hydrogen-ion selective glass electrodes. "
J. Electroanal. Chem. 1973, 45, 127-139.
Karlberg B.
"The transient characteristics of the two-iron response of hydrogen selective glass electrodes."
J. Electroanal. Chem. 1973, 42, 115-126.
Karlberg B.
"Response-time properties of some hydrogen ion-selective glass electrodes in non-aqueous solutions. "
Anal. Chim. Acta 1973, 66, 93-103.
Ginstrup O.
"An exponential current generator."
IEEE Transactions on Instrumentation and Measurement, 1973, IM-22, 222-225.
Ginstrup O.
"Simultaneous determination of platinum(II) and platinum(IV) by controlled-reagent coulometry."
Anal. Chim. Acta 1973, 63, 153-163.
Eriksson T., Lunner S-E.
"Control of HNO-HF stainless-steel pickling baths with the aid of a Permaplex membrane electrode and a lanthanum fluoride electrodes."
J. Iron Steel Institute, 1973, pp 581-586.
Eriksson T.
"Determination of hydrofluoric acid in strong acid solutions such as stainless steel pickling paths with a lanthanum fluoride electrode and a Permaplex membrane electrode. "
Anal. Chim. Acta 1973, 65, 417-424.
Eriksson T., Johansson G.
"Determination of the concentration of strong acids with a Permaplex membrane electrode in the presence of hydrofluoric acid and various cations. "
Anal. Chim. Acta 1973, 63, 445-453.
Cedergren A.
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Talanta 1973, 20, 621-630.
Boström K-Å., Cedergren A., Johansson G.
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Application Note, LKB-Produkter AB, 1973, s. 1-5.
Wikby A.
"Some surface properties of glass electrodes."
Diss. Umeå universitet, 1972.
Wikby A.
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J. Electroanal. Chem. 1972, 39, 103-109.
Wikby A.
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J. Electroanal. Chem. 1972, 38, 429-440.
Wikby A.
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J. Electroanal. Chem. 1972, 38, 441-443.
Sharp M.
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Sharp M.
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Anal. Chim. Acta 1972, 61, 99-114.
Sharp M.
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Anal. Chim. Acta 1972, 59, 137-142.
Lindberg J.
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Fil lic avhandling, Umeå universitet, 1972.
Lindberg J.
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Claesson J., Lindberg J.
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Johansson G., Edström K.
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Talanta 1972, 19, 1623-1632.
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Ginstrup O.
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Acta Chem. Scand. 1972, 26, 1527-1541.
Eriksson T.
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Diss. Umeå universitet, 1972.
Eriksson T.
"The application of linear regression to potentiometric titration of millimolar solutions of fluoride with lanthanum(III)."
Anal. Chim. Acta 1972, 58, 437-444.
Wikby A.
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J. Electroanal. Chem. 1971, 33, 145-159.
Eriksson T.
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Fil lic avhandling, Umeå universitet, 1971.
Karlberg B.
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Fil lic avhandling, Umeå universitet, 1971.
Sharp M., Johansson G.
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Anal. Chim. Acta 1971, 54, 13-21.
Rehioui A., Johansson G.
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Talanta 1971, 18, 329-337.
Karlberg B.
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Anal. Chem. 1971, 43, 1911-1913.
Cedergren A., Johansson G.
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Talanta 1971, 18, 917-925.
Rehioui A.
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Fil lic avhandling, Umeå universitet, 1970.
Ginstrup O.
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Acta Chem. Scand. 1970, 24, 875-888.
Eriksson T., Johansson G.
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Anal. Chim. Acta 1970, 52, 465-473.
Wikby A.
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Fil lic avhandling, Umeå universitet, 1970.
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Karlberg B., Johansson G.
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Talanta 1969, 16, 1545-1551.
Johansson G.
"Jonselektiva elektroder."
Kemisk Tidskrift 1969, 2, 6-12.
Cedergren A., Johansson G.
"Automatic coulometric titration of Kjeldahl digestion products"
Science Tools 1969, 16, 19-22.

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