期刊
TALANTA
卷 208, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.talanta.2019.120395
关键词
Hyphenated systems; ICP-OES; MSIS; Arsenic spedation
资金
- European Union through the European Social Fund under the Operational Program Knowledge Education Development [POWR.03.02.0040-1026/16]
The paper presents a new usage of a commercial in-spray chamber hydride generator, Multi-mode Sample Introduction System (MSIS) as a connector of high pressure liquid chromatography and inductivity coupled plasma optical emission spectrometry (HPLC/HG-ICP-OES). This hyphenated technique was applied in a determination of inorganic and organic arsenic species. The optimization of a hydride generation process in MSIS and a chromatographic separation (using anion-exchange HPLC column with phosphate buffer as a mobile phase) were carried out compositely. The method allowed to determine three arsenic forms, As(III), As(V) and dimethylarsinate (DMA) within 400s of a single analysis. The obtained limits of detection (LODs) were 2.08 mu g L-1 for As(III); 6.97 mu g L-1 for As(V); 6.15 mu g L-1 for DMA and precision 2.7%, 4.8%, and 5.7%, respectively, for 100 mu g L-1. The described method was used for environmental and food samples analyses.
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