AS23离子色谱柱法测定地表水中碘化物

Determination of iodide in surface water by AS23 ion chromatography column

采用AS23阴离子分析柱,50 mmol/L氢氧化钾淋洗液,流速1.0 mL/min,进样量250μL,对地表水中碘化物进行检测,结果表明,该方法在8.620 min出峰,方法检测限为0.5μg/L,测定方法相关性R=0.9998,线性范围0.01~2 mg/L,适用于地表水中碘化物的测定。

An AS23 anion analysis column was used to detect iodide in surface water with 50 mmol/L potassium hydroxide leaching solution at a flow rate of 1.0 mL/min and an injection volume of 250μL.The result showed that the peak time of the method was 8.620 min,and the detection limit was 0.5μg/L.Correlation R=0.9998.The linear range is 0.01~2 mg/L,it is suitable for the determination of iodide in surface water.