石墨炉原子吸收法测定化妆品中的铅和砷

Determination of Arsenic and Lead in Cosmetic by GFAAS

本文研究了石墨炉原子吸收法测定化妆品中铅、砷的方法。用湿式消解法消化样品，易掌握。方法简便，灵敏度高。用本方法测定铅的检出限为０．０１０ｎｇ，砷的检出限为０．０１３ｎｇ，相对标准偏差为０．８％－５．２％，方法的回收率为９６．１％－１０５．８％。

An analytical method of the determination of arsenic and lead in cosmetic by GFAAS has been studied. The sample preparation can be easily accomplished by using a wet-digestion procedure and this is easy to master. The determination sensitivity is enhanced.The limit of detection of lead is 0. 010 ng and that of arsenic 0. 013ng. The recovery rates of the method is 96.1% -105. 8%. The relative standard deviation fell into 0. 8%-5. 2%.