微波消化—氢化物原子吸收法测定奶粉中的砷

Determination of arsenic in milk powder by microwave digestion-hydride generation atomic absorption spectrometry

采用微波消化奶粉、氢化物原子吸收法测定砷含量。方法简单快速 ,灵敏度高 ,检出限为0 .1mg/kg ,变异系数CV =6.3% ,回收率为 88%～ 98%。

This article describes the determination of arsenic in milk powder by microwave digestion hydride generation atomic absorption spectrometry.The method is simple ,rapid and of high sensitivity.The limit of detection is 0.1?mg/kg,CV=6.3%.The recovery is in the range of 88%～98%.