离子色谱同时测定水中10种阴离子含量

Simultaneous determination of 10 negtive ions in water by ion chromatography

目的：建立一种离子色谱检测方法，用于同时测定10种阴离子含量。方法：选用Ionpac AS23分离柱，Ionpac AG23保护柱，淋洗液为NaCO3／NaHCO3，浓度为7．0mmol／L／0．4mmol／L。流速1．0ml／min。结果：在0．005～8．00mg／L浓度范围内，各待测物的线性关系良好。结论：该方法简便、灵敏。一次进样23min内，全部分离完全，可满足国家饮用水卫生标准及美国EPA的标准。

Objective：To develop a method for simultaneous determination of 10 negtive ions in the water by ion chromatography. Methods：Ten negtive ions were separated by Ionpae AS23 column with Ionpac AG 23 with an eluent containing 7. 0 mmol/ L NaCO3 and 0.4 mmol/L NaHCO3. The flow rate was 1.0 ml/min. Results：The linear concentration range was 0. 005 - 8. 00 mg/L for each agent. Conclusion：The method enables efficient, sensitive and rapid analysis for both standards of EPA and the national drinking water sanitation, which simultaneously and completely separates all agents only in 23 minutes.