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Determination of Arsenic Species by High-Performance Liquid Chromatography–Hydride Generation–(Ultrasonic Nebulizer)–Atomic Fluorescence Spectrometry

✍ Scribed by Zoltán Mester; Ágnes Woller; Péter Fodor

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
116 KB
Volume
54
Category
Article
ISSN
0026-265X

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✦ Synopsis

A technique to determine four species of arsenic (As III , As V , dimethylarsinic (DMAs), and monomethylarsonic (MMAs) acids) where high-performance liquid chromatography was coupled to an atomic fluorescence spectrometer using an ultrasonic nebulizer as an interface has been further improved by the use of hydride generation. The effect of hydride conditions on signal intensities has been investigated. The detection limits for As III , As V , DMAs, and MMAs were 2.5, 6, 3.2, and 2 ng, respectively (at 250 mm 3 volume injected). The linearity for all four arsenic species were in the range 25-1000 ng.

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