过硫酸钾消解-离子色谱法同时检测水中氯化物、总磷和总氮  

Potassium Persulfate Digestion-Simultaneous Detection of Chloride,Total Phosphorus,and Total Nitrogen in Water by Ion Chromatography

作　　者：谭智敏 TAN Zhimin(Guangdong Qingchang Environmental Protection Technology Co.,Ltd.,Heshan 529700,China)

机构地区：[1]广东清畅环保科技有限公司,广东鹤山529700

出　　处：《品牌与标准化》2024年第6期13-15,共3页

摘　　要：建立一种先用过硫酸钾消解水样,碳酸钡粉去除消解后大量的硫酸盐,再用离子色谱法同时测定水中氯化物、总磷、总氮含量的方法。此方法避免了国标法存在的干扰因素多、步骤繁杂、试剂种类多、分析时间长等问题,具有准确度高、灵敏度高、耗时短的优点。经验证,本方法操作简单,检出限低,精密度和准确度都满足分析测试要求,适用于地表水、污水中氯化物、总磷、总氮的测定。This article establishes a method for the simultaneous determination of chloride,total phosphorus,and total nitrogen content in water samples using potassium persulfate digestion,barium carbonate powder to remove a large amount of sulfate after digestion,and ion chromatography.This method avoids the interference factors,complex steps,multiple types of reagents,and long analysis time of the national standard method,and has the advantages of high accuracy,high sensitivity,and short time consumption.After verification,this method is simple to operate,has a low detection limit,and meets the requirements of analysis and testing in terms of precision and accuracy.It is suitable for the determination of chloride,total phosphorus,and total nitrogen in surface water and sewage.

关 键 词：离子色谱法 过硫酸钾 氯化物 总磷 总氮 碳酸钡 

分 类 号：X832[环境科学与工程—环境工程]