Rapid sample preparation procedure for As speciation in food samples by LC-ICP-MS

被引：23

作者：

Batista, B. L. ^{[1
]}

Nacano, L. R. ^{[1
]}

De Souza, S. S. ^{[1
]}

Barbosa, F., Jr. ^{[1
]}

机构：

[1] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, Dept Anal Clin Toxicol & Bromatol, BR-14040903 Ribeirao Preto, SP, Brazil

来源：

FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT | 2012年 / 29卷 / 05期

基金：

巴西圣保罗研究基金会;

关键词：

chromatography LC/MS; ICP/MS; metals analysis ICP/MS; heavy metals arsenic; metals speciation; animal products - meat; canned foods; eggs; fish and fish products; ARSENIC SPECIATION; SEQUENTIAL EXTRACTION; SPECTROMETRY; RICE; FISH;

D O I：

10.1080/19440049.2011.645218

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

This paper describes a rapid method for arsenic (As) speciation by LC-ICP-MS in several types of food samples. Prior to analysis, samples were milled and the As species extracted from biological tissues by sonication in only 2 min with a solution containing MeOH (10%, v/v) plus HNO3 (2%, v/v). As species were separated by LC using an anion exchange column. Method detection limits for AsB, As3+,DMA, MMA and As5+ were 1.3, 0.9, 0.6, 0.7 and 0.8 ng g(-1), respectively. Method accuracy and precision were traceable to Certified Reference Materials SRM1577 bovine liver from the National Institute of Standards and Technology, CE278 mussel tissue from the Institute of Reference Materials and Measurements and DOLT-3 dogfish liver tissue and DORM-3 fish protein from the National Research Council of Canada. Finally, the method was applied to speciate As in food samples (egg, fish muscle, beef and chicken) purchased in Brazilian markets.

引用

页码：780 / 788

页数：9

共 32 条

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