Anionic cartridge preconcentrators for inorganic arsenic, monomethylarsonate and dimethylarsinate determination by on-line HPLC-HG-AAS |
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| Authors: | M Gómez C Cámara M A Palacios A López-Gonzálvez |
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| Institution: | (1) Departamento de Química Analitica, Facultad de Química, Universidad Complutense, E-28040 Madrid, Spain, ES;(2) Departamento de CC Básicas, Facultad de CC Experimentales y Técnicas, Universidad San Pablo-CEU, Urbanización Monteprincipe, Boadilla del Monte, E-28660 Madrid, Spain, ST |
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| Abstract: | Preconcentration anionic cartridges in combination with hyphenated FI-HG-AAS and HPLC-HG-AAS have been evaluated for the
preconcentration and quantification of total toxic arsenic and of inorganic arsenic, monomethylarsonate and dimethylarsinate
species, respectively. Optimum retention and elution parameters of the species on the anionic cartridges are evaluated and
the quality parameters of the analysis are reported. The detection limits for the arsenic species under study range from 0.1 μg L-1 to 0.6 μg L-1. The proposed method was successfully applied to the determination of arsenic species in spiked fresh water.
Received: 2 April 1996/Revised: 22 July 1996/Accepted: 25 July 1996 |
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