E3S Web of Conferences
Volume 1, 2013Proceedings of the 16th International Conference on Heavy Metals in the Environment
|Number of page(s)||3|
|Section||Analytical Chemistry IV|
|Published online||23 April 2013|
Speciation of Six-Arsenic Species of Rice in Korea by HPLC/ICPMS
Department of Agro-food Safety, National Academy of Agricultural Science, Rural Development Administration, Republic Korea
Determination of arsenic (As) speciation in rice is necessary because inorganic As species are more toxic than organic As. Arsenic levels of rice in Korea were determined by microwave extraction and High Performance Liquid Chromatography coupled with Inductively Coupled Plasma-Mass Spectrometry. The extraction method showed a high recovery and low Limit of Detection (LOD) and Limit of Quantitation (LOQ). Most of the As species in rice were noticed to be inorganic [Arsenite (AsIII), Dimethylarsinic acid (DMA)]. The percentage of inorganic As/total As is 69.01 % (36.40-87.86 %). Arsenite and DMA were the major compounds in rice in Korea when compare to U.S. rice. The order and percentage of As species showed were AsIII (56-70 %)>DMA (23-38 %)>AsV (5 %)>MMA(1 %).
Key words: Speciation / Arsenic species / HPLC/ICPMS / Rice
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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