An anion column with high efficiency, using carbonate system eluent.It can simultaneously analyze 7 kinds of common anions (F–, Cl–, Br–, NO2–, NO3–, H2PO4–, SO42-), disinfection by-products (BrO3– ,ClO2– ,ClO3– ,dichloroacetic acid DCA, trichloroacetic acid TCA) and other anions, especially for the analysis of halogenates containing oxygen and is suitable for various industries such as disease control, food, environment, metallurgy, geology and so on.