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Untersuchungen zur analytischen Bestimmung von Cadmium in anorganischen Mikroproben durch Atomfluoreszenz mit elektrothermischer Atomisierung

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Summary

Analytical Determination of Traces of Cadmium in Inorganic Matrices by Atomic Fluorescence With Electrothermal Atomization

A method for the determination of traces of cadmium in inorganic substances (Ga, As, Al, GaAs) by atomic fluorescence with electrothermal atomization is described. The optimized parameters of the self-made AF-spectrometer and the micro-wave excited, selfmade Cd-EDL are given. The influence of the matrices on the Cd-AFS is discussed. It is shown, that determinations of traces of Cd are possible in easy and truly vapor-isable inorganic matrices by optimization of the volatilization processes. The detection limits are: 0,2 ppb, 5,6 ppb, 44 ppb, 2,5 ppb and 85 ppb relative to 10 mg acid, 1,25 mg Ga, 0,05 mg Al, 1,34 mg As and 0,25 mg GaAs.

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Authors and Affiliations

  1. Analytischen Zentrum der Sektion Chemie der Karl-Marx-Universität Leipzig, 701 Leipzig, DDR

    Klaus Dittrich & Rainer Wennrich

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  1. Klaus Dittrich
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  2. Rainer Wennrich
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Dittrich, K., Wennrich, R. Untersuchungen zur analytischen Bestimmung von Cadmium in anorganischen Mikroproben durch Atomfluoreszenz mit elektrothermischer Atomisierung. Mikrochim Acta 67, 495–504 (1977). https://doi.org/10.1007/BF01195961

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  • DOI: https://doi.org/10.1007/BF01195961

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