Simultaneous determination of arsenic, selenium and antimony in water by an inductively coupled plasma hydride method

Autor: H. R. van Vliet, J.F. van Staden, L. Pretorius, Phillip L. Kempster
Rok vydání: 1992
Předmět:
Zdroj: Fresenius' Journal of Analytical Chemistry. 342:391-393
ISSN: 1432-1130
0937-0633
DOI: 10.1007/bf00322192
Popis: Arsenic, selenium and antimony were determined using on-line hydride generation in conjunction with a simultaneous medium power inductively coupled plasma (ICP) spectrometer with conventional pneumatic nebulization. The sample, acidified with 3 mol/l hydrochloric acid was mixed with 1% (m/v) sodium tetrahydroborate and 5% (m/v) potassium iodide, the mixed stream being pumped to the nebulizer of the ICP spectrometer. Calibration curves were linear up to 1 mg/l analyte, with detection limits of 2; 3 and 3 μg/l for arsenic, antimony and selenium, respectively, for 10 s integration times and a sample uptake rate of 2.15 ml/min.
Databáze: OpenAIRE