Speciation of methylmercury in rice grown from a mercury mining area
文献类型：期刊论文
| 作者 | Li, Lu ; Wang, Feiyue ; Meng, Bo ; Lemes, Marcos ; Feng, Xinbin ; Jiang, Guibin |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2010-10 |
| 卷号 | 158期号:10页码:3103-3107 |
| 关键词 | Rice Mercury Methylmercury Speciation Risk assessment Enzymatic hydrolysis ICP-MS LC |
| 中文摘要 | Monomethylmercury (CH(3)Hg(+) and its complexes; MeHg hereafter) is a known developmental neurotoxin. Recent studies have shown that rice (Oryza sativa L) grain grown from mercury (Hg) mining areas may contain elevated MeHg concentrations, raising concerns over the health of local residents who consume rice on a daily basis. An analytical method employing high performance liquid chromatography (HPLC) - inductively coupled plasma mass spectrometry (ICP-MS) following enzymatic hydrolysis was developed to analyze the speciation of MeHg in uncooked and cooked white rice grain grown from the vicinity of a Hg mine in China. The results revealed that the MeHg in the uncooked rice is present almost exclusively as CH(3)Hg-L-cysteinate (CH(3)HgCys), a complex that is thought to be responsible for the transfer of MeHg across the blood brain and placental barriers. Although cooking does not change the total Hg or total MeHg concentration in rice, no CH(3)HgCys is measurable after cooking, suggesting that most, if not all, of the CH(3)HgCys is converted to other forms of MeHg, the identity and toxicity of which remain elusive. (c) 2010 Elsevier Ltd. All rights reserved. |
| WOS记录号 | WOS:000282260200014 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21144]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Li, Lu,Wang, Feiyue,Meng, Bo,et al. Speciation of methylmercury in rice grown from a mercury mining area[J]. ENVIRONMENTAL POLLUTION,2010,158(10):3103-3107. |
| APA | Li, Lu,Wang, Feiyue,Meng, Bo,Lemes, Marcos,Feng, Xinbin,&Jiang, Guibin.(2010).Speciation of methylmercury in rice grown from a mercury mining area.ENVIRONMENTAL POLLUTION,158(10),3103-3107. |
| MLA | Li, Lu,et al."Speciation of methylmercury in rice grown from a mercury mining area".ENVIRONMENTAL POLLUTION 158.10(2010):3103-3107. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。