Journal
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
Volume 57, Issue 3, Pages 463-472Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0584-8547(02)00012-5
Keywords
hydride generation; atomic absorption spectrometry; interference; antimony; masking agent; picolinic acid; L-cysteine
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The minimization of copper and nickel interference on the determination of antimony by hydride generation atomic absorption spectrometry using picolinic acid and L-cysteine as masking agents was studied. Concentrations up to 4000 and 1000 mg l(-1) of nickel and copper respectively were found to be tolerable in the presence of picolinic acid. The simultaneous presence of both transition metals could be tolerated by using a mixture of picolinic acid and L-cysteine. In the analysis of a nickel oxide certified reference material good agreement between the recommended and found values was verified. A detection limit (3 s, n = 10) of 0.1 mug Sb g(-1) in the original sample was estimated. (C) 2002 Elsevier Science B.V. All rights reserved.
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