Atomic Spectrometry Group

Instrumental Developments in GFAAS
  1. Frech W.
    Recent developments in atomizers for electrothermal atomic absorption spectrometry.
    Fresenius J. Anal. Chem. 355 (1996) 475-486.
  2. Hadgu N., Ohlsson K.E.A., Frech W.
    Diffusion vapour transfer modelling for an end-capped atomizer. Part 1. Atomizer with closed injection port.
    Spectrochim. Acta 50B (1995) 1077-1093.
  3. Berglund M.
    Towards multielement electrothermal atomic absorption spectrometry.
    Ph.D. Thesis, Umeå University (1995). ISBN 91-7191-023-9.
  4. Hadgu N., Frech W.,
    Performance of side-heated graphite atomizers in atomic absorption spectrometry using tubes with end caps.
    Spectrochim. Acta 49B (1994) 445-457.
  5. 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 48B (1993) 1381-1392.
  6. Frech W., L'vov B.V.
    Matrix vapours and physical interference effects in graphite furnace atomic absorption spectrometry - II. Side-heated tubes.
    Spectrochim. Acta 48B (1993) 1371-1379.
  7. 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 46B (1991) 1767-1777.
  8. 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. 4 (1989) 625-629.
  9. 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. 3 (1988) 1115-1119.
  10. Lundberg E., Frech W., Baxter D.C., Cedergren A.
    Spatially and temporally constant-temperature graphite furnace for atomic absorption/emission spectrometry.
    Spectrochim. Acta 43B (1988) 451-457.
  11. Baxter D.C.
    Advantages of spatially isothermal graphite furnaces for atomic spectrometry.
    Ph.D. Thesis, Umeå University (1988). ISBN 91-7174-319-7.
  12. Frech W., Baxter D.C.
    Solution to spatial non-isothermality in electrothermal atomic spectrometry.
    In Analytiktreffen 1986 und IX CANAS, Wissenschaftliche Beiträge der Karl-Marx-Universit&aumlt, Neubrandenburg. Band 1, pp. 47-60 (1987).
  13. Frech W., Baxter D.C., Hütsch B.
    Spatially isothermal graphite furnace for atomic absorption spectrometry using side-heated cuvettes with integrated contacts.
    Anal. Chem. 58 (1986) 1973-1977.
  14. 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 39B (1984) 261-269.
  15. Frech W., Cedergren A., Lundberg E., Siemer D.D.
    Electrothermal atomic absorption spectroscopy - present understanding and future needs.
    Spectrochim. Acta 38B (1983) 1435-1446.
  16. Frech W., Jonsson S.
    A new furnace design for constant temperature electrothermal atomic absorption spectroscopy.
    Spectrochim. Acta 37B (1982) 1021-1028.
  17. Lundberg E., Frech W.
    Influence of instrumental response time on interference effects in graphite furnace atomic absorption spectrometry.
    Anal. Chem. 53 (1981) 1437-1442.
  18. Lundberg E., Lundmark L.
    Automatic gas control unit for electrothermal atomizers.
    Chem. Biomed. Environ. Instrum. 9 (1979) 91-93.
  19. Lundberg E.
    Instrumental developments in graphite furnace atomic absorption spectroscopy with applications to direct determinations of trace metals in solid samples.
    Ph.D. Thesis, Umeå University (1979). ISBN 91-7174-032-5.
  20. 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. 32 (1978) 276-281.
  21. Lundberg E.
    A simple modification of the Varian AA-6 spectrophotometer - faster response time to flameless atomizer absorption signals.
    Chem. Instrum. 8 (1978) 197-204.
  22. Lundberg E., Johansson G.
    Simultaneous determination of manganese, cobalt, and copper with a computer-controlled flameless atomic absorption spectrophotometer.
    Anal. Chem. 48 (1976) 1922-1926.
  23. Lundgren G., Lundmark L., Johansson G.
    Temperature controlled heating of the graphite tube atomizer in flameless atomic absorption spectrometry.
    Anal. Chem. 46 (1974) 1028-1031.
  24. Lundgren G., Johansson G.
    A temperature-controlled graphite tube furnace for the determination of trace metals in solid biological tissue.
    Talanta 21 (1974) 257-264.
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