期刊
SCIENCE CHINA-CHEMISTRY
卷 58, 期 12, 页码 1898-1905出版社
SCIENCE PRESS
DOI: 10.1007/s11426-015-5443-5
关键词
arsenic speciation; exposure assessment; inorganic arsenic; rice
资金
- National Key Technology Support Program [2012BAK01B01]
- International Science and Technology Cooperation Program of China [2011DFA31770]
This study examined the total arsenic (As-t) and inorganic arsenic (As-i) content in the main rice growing area of China. The results were compared with other countries and then used for dietary exposure assessment. A total of 446 rice samples from 15 main rice-growing provinces and autonomous regions of China were collected and then divided into unpolished and polished rice. Total arsenic and arsenic species were analyzed in a total of 892 subsamples using inductively coupled plasma-mass spectrometry (ICP-MS) and high performance liquid chromatography (HPLC) coupled ICP-MS, respectively. National As-t means were 255 mu g/kg of unpolished rice and 143 mu g/kg of polished rice. As-i was found to be the predominant species and mean levels were 209 mu g/kg of unpolished rice and 108 mu g/kg of polished rice, respectively. Exposure assessment to As-i in polished rice has been calculated for the margin of exposure (MOE), which highlights the fact that As-i levels in the Chinese rice should arouse public health concern.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据