Determination of arsenic in the presence of high copper concentrations using flow-injection analysis-hydride atomic absorption spectrometry |
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Authors: | C Schmidt and M Bahadir |
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Institution: | (1) Institut für Ökologische Chemie und Abfallanalytik, TU Braunschweig, Hagenring 30, W-3300 Braunschweig, Germany |
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Abstract: | Summary Arsenic is determined in environmental samples containing metal ions up to 10,000 mg/l copper, 200 mg/l lead, 200 mg/l iron and 200 mg/l nickel by using the FIA-hydride-AAS technique. In the presented sample preparation method arsenic is prereduced and the interfering metal ions are precipitated. As signal depressions from metal ions are excluded, a detection limit of 1 g/l arsenic is achieved.Dedicated to Professor Dr. Wilhelm Fresenius on the occasion of his 80th birthday |
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