摘要
目的 建立离子色谱法测定饮用水中碘化物。方法 离子色谱仪系统，选择40mmol／L氢氧化钠为淋洗液，流速1．0ml／min。结果测定方法相关性好（r〉0．9999），线性范围宽（0．001～0．50rag／L），精密度高（RSD〈3．59％），准确度好。结论 方法简便、快速，无干扰，灵敏度高，有较高的实用价值。
Objective To set up a method for determination of iodide by ion chromatography with electrochemical detection. Method Iodide was detected by ion chromatography at eluent of 40mmol/L NaOH and velocity of flow was 1. 0 ml/min, applied potential of ＋ 0.10V. Results The method showed broad linear range from 0. 001 mg/L to 0.50 mg/L and good correlativity （r〉0. 9999）. The precision and accuracy was excellent （RSD 〈 3.59 % ）. The detection limits for iodide was 0.00007mg/L. Conclution Ion chromatography method with high sensitivity is simple and rapid, without any interference, and suitable to be applied in determination of iodide in drinking water .
出处
《实用预防医学》
CAS
2006年第5期1331-1333,共3页
Practical Preventive Medicine
关键词
离子色谱
饮用水
碘化物
Ion chromatography
Drinking water
Iodide
