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
Evaluation of high-performance liquid chromatography for the separation and determination of arsenic species by on-line high-performance liquid chromatographic-hydride generation-atomic absorption spectrometry
✍ Scribed by I. Martín; M.A. López-Gonzálvez; M. Gómez; C. Cámara; M.A. Palacios
- Publisher
- Elsevier Science
- Year
- 1995
- Weight
- 500 KB
- Volume
- 666
- Category
- Article
- ISSN
- 0378-4347
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High-performance liquid chromatography (h.p.1.c.) is used for separation of arsenite, arsenate, monomethylarsinate (MMA) and dimethylarsonate (DMA) followed by continuous sodium tetrahydroborate reduction and atomic absorption spectrometric detection. Sample preconcentration, offering improved detec
A system capable of the separation of arsenic species by on-line high performance liquid chromatography prior to their online decomposition by microwave digestion, pre-reduction with t.-cysteine and analysis by hydride generation-atomic absorption spectrometry has been developed. This approach enabl