离子色谱法测定水中的F^-、Cl^-、NO_2^-—N、NO_3^-—N、SO_4^(2-)

DETERMINATION OF F^- ,CI^- , NO_2^--N, NO_3^-—N AND SO_4^(2-) BY ION CHROMATOGRAPHY

应用DX-102型离子色谱仪测定水中的F^-、Cl^-、NO_2^-—N、NO_3^-—N及SO_4^(2-),淋洗液为1.42mmol/LNaHCO_3-1.50mmol/L Na_2CO_3溶液,淋洗液流速为1.8 mL/min,进样量为25μL。5种离子在上述实验条件下分离良好,定量测定的线性相关系数均在0.9995以上。

F- ,Cl- ,NO2--N,NO3--N and SO42- in water were determinated by DX - 102 ion chromatography. Precision in the water sample analysis and recovery were discussed.