Zhou Li, Hao Qing-Xiu, Wang Sheng, Yang Quan, Kang Chuan-Zhi, Yang Wan-Zhen, Guo Lan-Ping
College of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China.
State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
Zhongguo Zhong Yao Za Zhi. 2017 Aug;42(15):2934-2938. doi: 10.19540/j.cnki.cjcmm.20170714.016.
The contents of five heavy metals (Cu, Pb, As, Cd, Hg) in 17 batches of Cordyceps sinensis were determined by microwave digestion-ICP-MS, and their distribution in C. sinensis were analyzed. The results showed that the contents of Cu, Pb, Cd and Hg in all batches were in accordance with the international standards of Chinese Medicine-Chinese Herbal Medicine Heavy Metal Limit, with their contents in the stroma higher than that in the caterpillar body, and the excess rate of As, which mainly concentrated in the caterpillar body part of C. sinensis, was 88.24%, as the content of As in the caterpillar body was 7 to 12 fold of that in the stroma. In this study, the distribution of five heavy metals in C. sinensis was clarified, and the existing problems of arsenic limit of heavy metal in C. sinensis were analyzed, and some suggestions were put forward. It is hoped that the reference standard can be provided for the limited standard of arsenic in C. sinensis.
采用微波消解 - 电感耦合等离子体质谱法（ICP - MS）测定了17批次冬虫夏草中5种重金属（铜、铅、砷、镉、汞）的含量，并分析了它们在冬虫夏草中的分布情况。结果表明，各批次中铜、铅、镉和汞的含量均符合《中国药典 - 中药材重金属限量》国际标准，其在子座中的含量高于虫体，而主要集中在冬虫夏草虫体部分的砷超标率为88.24%，因为虫体中砷的含量是子座中的7至12倍。本研究阐明了5种重金属在冬虫夏草中的分布情况，分析了冬虫夏草重金属砷限量存在的问题，并提出了一些建议。希望能为冬虫夏草中砷的限量标准提供参考依据。
