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目的用DMA-80直接测汞仪对山楂、金银花、白芍、中槐提取物四种中药的汞含量进行测定。方法利用DMA-80直接测汞仪对四种中药的汞含量进行测定,样品无需做离线的湿化消解或复杂前处理,可全自动直接进样。结果样品回收率在90.1%~103.4%之间,RSD为2.0%~3.0%。结论该方法无需前处理,简便快捷,可得到满意的测定结果,适用于中药中汞含量的测定。
Objective To determine the mercury content of four Chinese herbs of hawthorn, honeysuckle, white peony root and Chinese acacia by using DMA-80 direct mercury analyzer. Methods DMA-80 direct mercury analyzer was used to determine the mercury content of four kinds of traditional Chinese medicines. The samples can be injected directly and automatically without offline wet digestion or complicated pretreatment. Results The recoveries of samples ranged from 90.1% to 103.4% with RSDs ranging from 2.0% to 3.0%. Conclusion The method without pretreatment, simple and quick, satisfactory results can be obtained for the determination of mercury in Chinese medicine.