Author(s)

John D. Brockman, John W. N. Brown IV

University of Missouri-Columbia, Research Reactor, St. Louis, USA.

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.

Arsenic Speciation; Epidemiology; Infant Rice Cereal; Liquid Chromatography Inductively Coupled Plas-ma Mass Spectrometry

J. Brockman and J. Brown IV, "Measurement of Arsenic Species in Infant Rice Cereals by Liquid Chromatography Inductively Coupled Plasma Mass Spectrometry," American Journal of Analytical Chemistry, Vol. 3 No. 10, 2012, pp. 693-697. doi: 10.4236/ajac.2012.310091.