尿中砷的氢化物发生—原子荧光光度测定法

Arsenic Hydride Generation in Urine-Atomic Fluorescence Spectrometry

目的建立微波消解氢化物发生一原子荧光光度法测定尿中砷的方法。方法采用密闭微波制样系统消解。双道原子荧光光度计测定。结果线性范围0～100μg／L，检出限0．36μg／L，样品加标回收率88．3％-98．7％。结论该方法具有操作简单，灵敏度高，线性范围宽，结果准确可靠特别适合于尿中砷的测定。

[ Objective] To establish the microwave digestion hydride generation-a method for arsenic detection in urine by atomic fluorescence spectrometry. [ Methods]The method of digestion by confined microwave digestion system was adopted to conduct digestion and dual channel atomic fluorescence photometer was employed for determination. [ Results] The calibration curve for arsenic ranged from 0 - 100 μg/L. Detection limit was 0.36 μg/L and the recoveries of standard addition was 88.3% - 98.7%. [ Conclusion] This method is applicable to determination of arsenic in urine for its simple, rapid, sensitive and of reliable results.