测定水中氟化物简易方法研究  

Research on the simple method of fluoride determination in drinking water

作　　者：朱文玲[1] 吉荣娣[1] 李淑敏[1] 邢方潇[1] 张振伟[1] 应波[1] 

机构地区：[1]中国疾病预防控制中心环境与健康相关产品安全所,北京100050

出　　处：《中国卫生检验杂志》2011年第4期817-819,共3页Chinese Journal of Health Laboratory Technology

基　　金："十一五"国家科技支撑计划重点项目(2006BAD01B06)

摘　　要：目的：针对我国农村水厂水质检验人员匮乏、设备简陋的现状,提出一种适用于农村水厂测定水中氟化物的简易方法。方法：简化操作步骤,将简易方法与国家标准方法进行比较,对方法精密度、准确度、标准化试剂保存时间以及标准曲线的拟合等进行实验研究。结果：采用简易方法测定水中氟化物结果与国家标准方法一致;方法的精密度RSD为6.5%,样品加标回收率为83%~115%;标准化试剂可保存9个月以上;可使用目视比色法或拟合标准曲线,简化标准曲线的制作。结论：本法简单快速准确,操作人员不需要配制试剂,不需要绘制标准曲线,可直接测试水样,并能直接读取测试指标的浓度,适用于农村基层水质实验室的应用。Objective：To aim at the present status of lacking of inspection persons and equipments for monitoring water quality in rural water plants,propose a suitable method of fluoride determination in drinking water.Methods： Simplify the process of operation,compare the simple method with national standard method for fluoride determination and research on the precision,accuracy,storage time of standardized reagents and standard curve fitting of the simple method.Results： The results of simple method were consistent with national standard method;RSD was 6.5%;the recovery was 83%~115%;the storage time of standardized reagents was above 9 months;To simplify the standard curve,visual colorimetry and fitting standard curve can be used.Conclusion： This method is simple,fast and accurate,it need not draw standard curve and can determinate water samples directly.The simple method is suitable for water quality laboratory in rural water plants.

关 键 词：氟化物 测定 拟合曲线 目视比色 

分 类 号：R123.1[医药卫生—环境卫生学]