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Methods for the Determination of Arsenic Speciation in Rice: A Review

Environment: Water and Waste

  1. Zhongwen Wang,
  2. Don Forsyth

Published Online: 17 DEC 2012

DOI: 10.1002/9780470027318.a9357

Encyclopedia of Analytical Chemistry

Encyclopedia of Analytical Chemistry

How to Cite

Wang, Z. and Forsyth, D. 2012. Methods for the Determination of Arsenic Speciation in Rice: A Review. Encyclopedia of Analytical Chemistry. .

Author Information

  1. Health Canada, Ottawa, Ontario, Canada

Publication History

  1. Published Online: 17 DEC 2012

Abstract

Arsenic contamination is an emerging environmental problem. A number of incidents around the world have been reported as a result of exposure to arsenic. Although most of the incidents reported are due to exposure from groundwater, contaminated well water, and occupational exposures, in recent years, research on arsenic exposure from food sources has increased. Recent research trends of studying arsenic in rice has captured the public's attention because elevated arsenic levels were found in rice and rice products available in the market place. This emerging issue prompted governments, academic, and private laboratories to develop and implement methods for the analysis of arsenic speciation in rice and rice products. The purpose of this article is to provide a general overview of the existing analytical methods that are used to extract and measure arsenic species in rice. Sample preparation, extraction methods, separation methods, detection methods, and other alternative methods are reviewed. Considerations regarding quality control procedures, such as certified reference material (CRM), speciation stability, etc., are also discussed.