Study on methods determining common anions in TSP by microwave extraction-ion chromatography
A rapid analytical method for the determination of common inorganic anions(F-,Cl-,NO3-,SO42-)in total suspended particulates(TSP)was established using ion chromatogram combined with microwave extraction technique.The experimental results showed that when the atmospheric sampling volume was 60 m3 and the sample preparation volume was 20 mL,the detection limit of the method was 0.033～0.067 μg/m3,the relative standard deviation was 2.7％～5.2％,and the standard recovery rate was 98.8％～102.2％.This determinationmethod has a wide application range,good reproducibility and easy operation,which is fast and accurate.
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