The AMC-1 is a very low void volume microconcentrator column designed for the concentration of inorganic anions and low-molecular-weight organic anions from ultrapure water. A unique, solvent-compatible resin technology ensures a low sulfate background and ruggedness during the concentration step. The AMC-1 can be loaded with either a loop or sample loading pump. The low void volume (approximately 15 µL) ensures accurate determination of early-eluting anions such as fluoride, glycolate, acetate, and formate. The AMC-1 can be used with carbonate/bicarbonate or borate eluents.