全自动石墨炉原子吸收法测定化妆品中镉

Determination of cadmium in cosmetics by automatic graphite stove atom absorb spectrometry

目的：研究化妆品中镉的测定方法。方法：取一定试样用浓硝酸水浴消化后，应用石墨炉原子吸收测定其镉的含量。结果：本方法测定化妆品中镉最低测定浓度为0．001mg／kg，回收率为95．5％～100．0％。结论：石墨炉原子吸收测定化妆品中的镉具有快速、准确、灵敏度高等优点，适于广泛使用和推广。

Objective：To study the determination method of cadmium in cosmetics. Methods：The content of cadmium in the samples was determined by automatic graphite stove atom absorb spectrometry after the samples were digestes by HNO3. Results： Using this method, the least determination concentration of cadmium was 0. 001 mg/kg and the recovery rate was 95.5% - 100. 0%. Conclusion：The method has many advantages such as celerity, high accuracy and degree of precision. It is appropriate for use and extension.