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Background correction in frequency modulated simultaneous atomic absorption spectrometry

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Summary

For a long time simultaneous multielement determination by AAS has been a subject of intensive research. In this work a simultaneous multielement atomic absorption spectrometry method is described in a special new arrangement, called frequency modulated simultaneous AAS (FremsAAS), using fiberoptics, interference filters and frequency modulation and demodulation by lock-in amplifiers as main devices. Purpose of this work was to equip the FremsAAS with a D2-background correction and to test it with certified reference materials. Mn, Cd, Pb, Cu, Ni, Cr and Zn had been determined simultaneously (three at a time) in sewage sludge (BCR/CRM 146), estuarine sediment (BCR/CRM 277) and phosphate rock (BCR/CRM 32) with good feasibility. Frequency modulated simultaneous AAS with background correction (FremsAASUK) represents an interesting alternative to known instruments.

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References

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Authors and Affiliations

  1. Institut für Chemo- und Biosensorik e.V., Westfälische Wilhelms-Universität, Lehrstuhl für Analytische Chemie, Wilhelm-Klemm-Strasse 8, W-4400, Münster, Germany

    R. Lehnert, L. Quick, T. Rump, F. Winter & K. Cammann

Authors
  1. R. Lehnert
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  2. L. Quick
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  3. T. Rump
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  4. F. Winter
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  5. K. Cammann
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Dedicated to Prof. Dr. V. Krivan on the occasion of his 60th birthday

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Lehnert, R., Quick, L., Rump, T. et al. Background correction in frequency modulated simultaneous atomic absorption spectrometry. Fresenius J Anal Chem 346, 392–395 (1993). https://doi.org/10.1007/BF00325849

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  • DOI: https://doi.org/10.1007/BF00325849

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