MethodsThiourea and thiourea-ascorbic acid as the pre-reducing agents were applied to determine the contents of arsenic in cosmetics by the atomic fluorescence spectrometry method.

• 利用氢化物原子荧光光度法测定化妆品中砷,分别用硫脲和硫脲-抗坏血酸作为样品预还原剂,采用加标回收试验,比较两种预还原剂对测定结果的影响。