【Abstract】 A simple method for the determination of chlorine, phosphorus and sulfur in Fuzi by ion chromatography has been proposed. The sample was ashed at 600℃ in the presence of Na 2CO 3 and extracted with boiling water. Separation of chlorine, phosphorus and sulfur in the form of Cl -, HPO 4 2- and SO 4 2- was carried out on an anion exchange resin column with a solution of 1 0×10 -3 mo1/L Na 2CO 3 4 0×10 -3 mo1/L NaHCO 3 as mobile phase. The linear ranges for the determination of Cl -,HPO 4 2- and SO 4 2- are (0 2～15 0)×10 -6 g/mL, (0 9～25 0)×10 -6 g/mL and (3 0～25 0)×10 -6 g/mL with correlation coefficients of 0 9998, 0 9981 and 0 9979, respectively; The RSDs are 4 2%, 3 9% and 3 2% respectively; The ranges of recovery are 95 0%～105%, 92 0%～107% and 91 0%～100%, respectively.更多还原