离子色谱法测定水中碘化物

Determination of Iodide in Water by Ion Chromatography

采用离子色谱仪对出厂水以及原水中碘化物的浓度进行测定。比起传统的测定方法,有预处理简单、准确度高、重复性好、灵敏度高等特点。文中介绍了离子色谱法测定水中碘化物的校准曲线相关系数为0.999 6,回收率为93.7%和96.6%,精密度为1.1%,检出限为0.20μg/L。此方法很好地排除了水中其他离子,如氟离子、氯离子和硝酸根离子等的干扰,适用于一般试验的检测要求。

Determination of iodide in treated water and raw water by the ion chromatograph was conducted in the experiment. Than ever before, this determination method played with simpler pretreatment, higher accuracy, better repeatability and higher sensitivity. This paper introduced the Ion Chromatography determination of iodide in water calibration curve correlation coefficient was 0.9996 , the recovery rate was 93.7% and 96.6%, precision was 1.1% and the detection limit was 0.20 ug/L. This method was very good ruled out other ions in water, such as fluorine, chlorine ion and nitrate ions and suitable for general lab testing requirements.