不同产地中药材及其栽培土壤中重金属含量比较研究

Comparison of Heavy Metal Contents in Chinese Herbal Medicine and Their Cultivated Soils from Different Habitats

摘要:

采用微波消解/ICP-MS法和高压罐消解/AAS法对吉林省安图、汪清、抚松、靖宇和集安5个产地种植的五味子、人参、西洋参、桔梗和龙胆草5种中药材及其栽培土壤中As、Hg、Pb、Cd、Cr进行测定。结果表明,5个产地5种中药材中As、Hg、Pb、Cd均未超出国家限量标准,5个产地栽培5种中药材土壤中As、Hg、Pb、Cd、Cr均未超出国家限量标准。从富集系数方面分析,桔梗对Cd富集能力较强。

Abstract:

Using microwave digestion/ICP-MS method and high-pressure tank digestion/AAS method, Hg, Pb, Cd and Cr of 5 kinds of Chinese herbal medicine, i.e., Schisandra, ginseng and American ginseng, Platycodon grandiflorum and gentian and soils cultivated them in Jilin Province（Antu, Fusong, Wang Qing, Jingyu and Ji’an） were deter-mined. The results showed that As, Hg, Pb and Cd in 5 kinds of Chinese herbal medicines in the 5 habitats were notbeyond the national limit standard. The As, Hg, Pb and Cd of of soil cultivated 5 kinds of Chinese herbal medicine were not exceeded the national standard. For the enrichment factor analysis, Cd enrichment ability of Platycodon grandiflorum was stronger.