Determination of Arsenic in Soil by Hydride Generation-atomic Fluorescence Spectrometry

Objective To establish a methed for detection of arsenic in soil by hydride generation-atomic fluorescence spectrometry. Methods The sample was detected by nitric acid,hydrogen peroxide and high chlorine acid oxdated on the electric hot plate.And then the sample was determined after added reductant in the best condition including load flow by hydride generation-atomic fluorescence spectrometry. Results γwas 0.999 6in the range of 0-50μg/L,the detection limit was 0.010μg/L,the relative standard deviation was 2.23%-4.41%,the recovery was 90.60%-106.20%. Conclusion The method is simple and rapid with good accuracy.