氢化物发生-原子吸收法测定美容胶囊中砷汞的含量

Determination of As and Hg in Meirong capsule by hydride generation-atomic absorption spectrometry

目的建立中药制荆美容胶囊中微量砷、汞的测定方法。方法采用高压消解法消解样品，氢化物原子吸收法测定砷、汞的含量。结果测定结果的r相对标准偏差（RSD，n=6）小于8．9％。回收率范围为90．8％～100．1％，方法的检出限分别为0．061，0．069μg／L。结论该方法简单快速，灵敏度高，可作为中药制荆美容胶囊中微量砷、汞的测定方法。

OBJECTIVE To establish a method for the determination of trail amounts of As and Hg in Meirong capsule. METHODS Hydride generation atomic absorption sepeetrometry was used to determine As and Hg by high-pressure digesting sample. RESULTS Thedetectionlimit of AS and Hg were 0. 061μg/L and0.069μg/L, RSD〈9%, the recovery was 90.8% -100.1%. CONCLUSION The method is simple, rapid and sensitivity, and can be applied for the determination of trace amount of As and Hg in Meirong Capsule.