中国中药杂志

2017, v.42(15) 2934-2938

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微波消解ICP-MS法对冬虫夏草不同部位5种重金属元素的分布研究
Study on distribution of five heavy metal elements in different parts of Cordyceps sinensis by microwave digestion ICP-MS

周利;郝庆秀;王升;杨全;康传志;杨婉珍;郭兰萍;
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;State Key Laboratory Breeding Base of Dao-di Herbs,National Resource Center for Chinese Materia Medica,China Academy of Chinese Medical Sciences;

摘要(Abstract):

应用微波消解-ICP-MS法测定了20批冬虫夏草中5种重金属铜(Cu)、铅(Pb)、砷(As)、镉(Cd)、汞(Hg)元素的残留量,并分析了5种重金属在冬虫夏草不同部位的含量。结果表明,在《中医药-中药材重金属限量》ISO国际标准下,所有批次样品中Cu,Pb,Cd,Hg 4种重金属元素的残留量均符合要求,且该4种元素在子座中的含量均高于虫体中的含量;重金属As的超标率为88.24%,样品中As主要集中于虫体部分,虫体中As的含量是子座的7~12倍。该研究阐明了冬虫夏草中5种重金属的分布规律,同时分析了现行冬虫夏草重金属砷限量标准所存在的问题,并提出了相关建议,希望能为冬虫夏草重金属砷的限量标准制定提供参考。
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.

关键词(KeyWords): 冬虫夏草;微波消解-ICP-MS;重金属;分布
Cordyceps sinensis;microwave digestion-ICP-MS;heavy metals;distribution

Abstract:

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基金项目(Foundation): 国家药典委员会药品医疗器械审评审批制度改革项目(ZG2016-1);; 国家科技部重点专项(2016YFF0202802)

作者(Author): 周利;郝庆秀;王升;杨全;康传志;杨婉珍;郭兰萍;
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;State Key Laboratory Breeding Base of Dao-di Herbs,National Resource Center for Chinese Materia Medica,China Academy of Chinese Medical Sciences;

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