水蛭药材重金属元素残留分析

目的：通过对水蛭药材重金属残留量的检测，了解目前市场上水蛭药材中重金属残留现状，分析可能造成水蛭重金属污染的因素，为水蛭的规范化养殖提供参考依据。方法：采用电感耦合等离子质谱（Inductively Coupled Plasma Mass Spectrometry，ICP-MS）技术对水蛭药材重金属残留量进行检测。结果：被测水蛭药材样品中重金属含量严重超标，对临床用药造成较大威胁。结论：建议在人工养殖过程中注意可能影响水蛭体内重金属水平的因素；相关部门在制定中药材质量标准时，应将水蛭类等动物药的安全限量单独地明确列出。

Residue Analysis on Heavy Metals in Medicinal Leeches

This study was aimed to detect the heavy metal residues of medicinal leeches, in order to understand the current market circulation situation of medicinal leeches, and to analyze possible factors which may cause heavy metal pollution, and to provide references for the standardized safe cultivation of medicinal leeches. Inductively coupled plasma mass spectrometry (ICP-MS) technique was applied to detect heavy metal residues in medicinal leeches. The results showed that medicinal leech samples tested for heavy metal content severely exceeded the standard, which caused a great threat to the safety of medication. It was conclude that more attentions should be paid on factors for causing heavy metal accumulation within medicinal leeches during the breeding process. The related department should also list safety limits explicitly and separately for animal drugs such as medicinal leech during the development of quality standards of Chinese materia medica.