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Measurement of Arsenic Species in Infant Rice Cereals by Liquid Chromatography Inductively Coupled Plasma Mass Spectrometry
University of Missouri-Columbia, Research Reactor, St. Louis, USA
University of Missouri-Columbia, Research Reactor, St. Louis, USA
- 1 University of Missouri-Columbia, Research Reactor, St. Louis, USA
- 2 University of Missouri-Columbia, Research Reactor, St. Louis, USA
American Journal of Analytical Chemistry·Volume 03 (2012)·Pages 693–697·Published 30 October 2012·DOI10.4236/ajac.2012.310091
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Abstract
Infant rice cereals were analyzed for total arsenic, inorganic arsenic (i-As) and the organic arsenic species monomethylarsonoic acid (MMA) and dimethylarsinic acid (DMA) using liquid chromatography inductively coupled plasma mass spectrometry (LC-ICP-MS). Total arsenic concentrations in the samples ranged from 110 ng/gup to 420 ng/g. The i-As in the rice cereals accounted for 33% to 77% of the total arsenic. The observed variability between infant rice cereals makes a dietary survey approach to accessing arsenic exposures difficult.
KeywordsArsenic SpeciationEpidemiologyInfant Rice CerealLiquid Chromatography Inductively Coupled Plas-ma Mass Spectrometry
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