研究了流动注射氢化物发生-原子吸收光谱法测定微量汞时的最佳条件,建立了中成药中微量汞的流动注射.冷原子吸收光谱分析方法。测定中成药中汞的检出限为2.7×10-9,线性范围0-60μg·L-1,相对标准偏差小于5％,加标回收率为95％-98％。方法操作简便、快速、灵敏、自动化程度高,应用于实际中成药样品中微量汞的测定,结果满意。 The optimal conditions for the determination of trace mercury by flow injection hydride generation-atomic absorption spectrometry were studied. A flow injection and cold atomic absorption spectrometry method for trace mercury in Chinese patent medicine was established. The detection limit of mercury in traditional Chinese medicines was 2.7×10-9, the linear range was 0-60 μg·L-1, the relative standard deviation was less than 5%, and the recoveries were 95%-98%. The method is simple, rapid, sensitive, and highly automated. It is applied to the determination of trace mercury in actual Chinese medicine samples with satisfactory results.