Abstract:A microwave ablation ion chromatographic method for trace anions of dyestuffs was developed. The interference of ion chromatography, the effect of pH on the separation effect, the effect of the choice of the drenching solution on the retention time, the effect of the flow rate on the peak height, peak area, separation and theoretical talk plate number were investigated. The results showed that the six anions had good linearity with correlation coefficients of 0.9991-0.9999, the limits of detection were 0.0002-0.0032 mg/L, the spiked recoveries were 97.6%-101.4%, the precision of the anions was <0.03%-2.55%, and the quantitative and qualitative precision of the instrument was <3.0%. The method is precise, accurate, rapid, and useful for the determination of azo The method is precise, accurate, rapid and of practical application for the determination of the content of halogens introduced at the 2,6-position of BODIPY fluorescent dyes.