摘要
建立一种用升压微波消解样品,氢化物发生原子荧光法测定大米产品中痕量砷和汞的方法,在优化实验条件下,通过样品加标测定回收率,砷的回收率为98%～105%,汞的回收率为94%～105%,该法具有操作简便、快速、准确、灵敏、重复性好等优点.
A method for the determination of mercury and arsenic in rice by hydride generation-atomic spectrophotofluorimetry with pressure gradient microwave digestion has been established .Recoveries of As and Hg has been proved to be 98%～105% and 94%～105% respectively by the recovery tests of standard addition to the samples under optimum conditions .The method has the advantages of simple operation, high precision ,good repeatability and low interference.
关键词
氢化物发生原子荧光法
测定
大米
砷
汞
微波消解
Arsenic
Mercury
Atomic spectrophotofluorimetry
rice
Microwave digestion
