离子色谱法测定复方聚乙二醇电解质散中氯离子及硫酸根

Determination of Chloride Ion and Sulfate Ion in Polyethylene Glycol Electrolytes Powder by Ion Chromatography

建立复方聚乙二醇电解质散中氯离子和硫酸根的离子色谱测定方法。色谱柱:Dionex IonPac AS11-HC阴离子分析柱(4 mm×250 mm,4μm),淋洗液:KOH,流速:1.0 mL·min^(-1),进样量:10μL,检测器:电导检测器,抑制器:Dionex AERS 500(4 mm),抑制电流:50 mA。经验证,该方法专属性、线性、重复性、准确度、耐用性均良好。该方法适用于聚乙二醇电解质散剂中氯离子和硫酸根的检测。

Determination method of chloride ion and sulfate ion in polyethylene glycol electrolytes powder by ion chromatography was established.Chromatographic column was Dionex IonPac AS11-HC anion analysis column(250 mm×4 mm,4μm),eluent was KOH,flow rate was 1.0 mL·min^(-1),injection volume was 10μL,detector was conductivity detector,suppressor was Dionex AERS 500(4 mm),suppression current was 50 mA.After verification,the specificity,linearity,repeatability,accuracy and durability of the method were good.The method is suitable for determination of chloride ion and sulfate ion in polyethylene glycol electrolytes powder.