2005•Guizhou kexueRequires access
ATOMIC FLUORESCENCE SPECTROMETRY DETERMINATION OF ARSENIC IN COAL WITH MICROWAVE AND HIGH-PRESSURE DIGESTION TECHNIQUE
Xie Feng, HE Jin-lin, Song Chun-ran, Chen An-ning, JI Yu-bi
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Abstract
Determination of arsenic applies microwave and high-pressure digestion technique. It is determined with nitric acid in a high-pressure microwave oven and then analyzed by atomic fluorescence spectrometry .The detection limit is 0.011ng/L,The calibration lines are linear in the range of 0~40 ng/L,and the recoveries of these materials range from 90.95% to 104.25%.The method is simple, rigid and low on the detection limit.