离子选择电极法测定水中氯化物  

Determination of Chloride in Water by Ion Selective Electrode Method

作　　者：付志军 罗桂娟 李雅妍 张静 曾波 

机构地区：[1]江西省新余钢铁集团公司环境监测站,江西新余338028

出　　处：《环境监测管理与技术》2014年第1期49-52,共4页The Administration and Technique of Environmental Monitoring

摘　　要：采用离子选择电极法测定水中氯化物,通过试验确定参比溶液、离子强度调节剂的配制,并用添加氯离子氧化剂和离子浓度调节剂的方法排除干扰离子对测定的影响,使得复合氯离子电极测得的能斯特曲线响应系数为93.2%。标准品的加标回收率为99.8%±0.6%,测定结果的RSD为0.4%。用该方法与国标硝酸银滴定法同时测定实际水样,两方法的测定值绝对误差在允许范围内。Ion selective electrode method was established to determine chloride in water.Reference solution and ionic-strength adjustment buffer were ascertained.Through filling special ion liquid,the Nernst response curve slope of ion selective electrode was up to more than 93.2%.The recovery of standard solution was 99.8%±0.6%,with the RSD 0.4%.Compared with national standard of silver nitrate titration method,the detection error is acceptable.

关 键 词：氯化物 离子选择电极法 水质 

分 类 号：O657.15[理学—分析化学]