Investigation of arsenic speciation in oyster test reference material by multidimensional HPLC-ICP-MS and electrospray tandem mass spectrometry (ES-MS-MS)

被引：56

作者：

McSheehy, S ^{[1
]}

Pohl, PL ^{[1
]}

Lobinski, R ^{[1
]}

Szpunar, J ^{[1
]}

机构：

[1] CNRS, UMR 5034, F-64053 Pau Pyrenees, France

来源：

ANALYST | 2001年 / 126卷 / 07期

关键词：

D O I：

10.1039/b102225n

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Multidimensional (size-exclusion-anion-exchange-cation-exchange) liquid chromatography with ICP-MS detection was developed to produce a map of water-soluble species in an oyster test reference material. The presence of arsenobetaine, trimethyl(2-carboxyethyl)arsonium inner salt, arsenocholine, dimethylarsonic acid, tetramethylammonium ion, As(v) and two arsenosugars was demonstrated by ES-MS-MS. A previously unreported compound was isolated and identified by ES-MS-MS as 5-dimethylarsinoyl-beta -ribofuranose. Anion-exchange chromatography was optimized to produce a chromatographically pure peak of arsenobetaine (accounting for ca. 64% of all water-soluble As present) that was used to quantify this compound.

引用

页码：1055 / 1062

页数：8

共 18 条

[11] Speciation of arsenic in edible algae by bi-dimensional size-exclusion anion exchange HPLC with dual ICP-MS and electrospray MS/MS detection [J].