节点文献
何首乌块根中砷、镉、汞和铅含量的检测及其富集特性
Determination and accumulative action of As, Cd, Hg and Pb in the root tuber of Polygonum multiflorum
【Abstract】 The contents of As, Cd, Hg and Pb in root tubers of annual and biennial plants of Polygonum multiflorum Thunb. in Jiangsu Province were 0.32, 0.24, 0, 1.25 and 0.20, 0.26, 1.67×10 -4, 1.32 mg·kg -1 respectively, which totally met the standards of GTSIEMPP (WM2—2001). Biology concentration factors (BCF) of Cd is 2.4-2.6, which indicates that the root tuber of P. multiflorum has a strong accumulative action to Cd. While the accumulative action to As, Hg and Pb is not strong, BCF are 0.025-0.015, 0-6.40×10 -4 and 0.06 respectively.
【关键词】 何首乌;
砷;
镉;
汞;
铅;
富集;
【Key words】 Polygonum multiflorum Thunb.; As; Cd; Hg; Pb; accumulative action;
【Key words】 Polygonum multiflorum Thunb.; As; Cd; Hg; Pb; accumulative action;
【基金】 江苏省自然科学基金资助项目(BK2001220)
- 【文献出处】 植物资源与环境学报 ,Journal of Plant Resources and Environment , 编辑部邮箱 ,2005年02期
- 【分类号】R284
- 【被引频次】15
- 【下载频次】279