| Determination method for total arsenic and partial-digestion method with nitric acid for inorganic arsenic speciation in several varieties of rice. | |
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MedLine Citation:
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PMID: 20827054 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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The determination method of total arsenic (As) and the speciation method of inorganic As for non-glutinous rice reported in our preceding paper were applied to several varieties of rice under optimized experimental conditions. In the determination of total As with ICP-MS, acetic acid was added to increase the sensitivity and an internal reference method with germanium was adopted to increase the precision. The extraction temperature in the partial-digestion method with nitric acid to speciate inorganic As was raised to 100 degrees C, because extraction efficiency over 90% was obtained from glutinous rice and colored rice at this temperature. In the investigation of polished and unpolished forms of non-glutinous, glutinous, and colored rice, the amounts of total and inorganic As were 0.04-0.54 mg/kg and 0.02-0.41 mg/kg, respectively. The color of rice was not related to total or inorganic As content. These results indicate that the inorganic As content in commercial rice should be carefully monitored. |
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Authors:
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Tsutomu Nishimura; Megumi Hamano-Nagaoka; Naoki Sakakibara; Takashi Abe; Yoshiaki Maekawa; Tamio Maitani |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan Volume: 51 ISSN: 1882-1006 ISO Abbreviation: Shokuhin Eiseigaku Zasshi Publication Date: 2010 |
Date Detail:
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Created Date: 2010-09-09 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0142214 Medline TA: Shokuhin Eiseigaku Zasshi Country: Japan |
Other Details:
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Languages: eng Pagination: 178-81 Citation Subset: IM |
Affiliation:
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Japan Food Research Laboratories, Shizuoka, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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