2024年12月22日 星期日
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
2005年 第14卷 第2期 页码[54-55] 下载全文[0.3MB]
| 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. |