沧州市不同水源饮用水中氟化物含量的检测

目的了解沧州市饮用水中氟化物含量的本底值,为探讨用氟离子选择电极法快速检测鲜牛奶掺假提供基础数据。方法随机抽取沧州市范围内不同类型的饮用水样本,采用氟离子选择电极法检测饮用水中氟化物含量。结果不同水源饮用水中氟化物的含量差异较大,自备井及某县的自来水氟化物含量为1.4349～6.007 9 mg/L,高于国家饮水标准;市区自来水为0.5892 mg/L,符合国家饮水标准。家庭安装净水器出水为0.4847 mg/L,市售桶装纯净水氟化物含量为0.023 00～0.040 40 mg/L、矿泉水为0.148 2 mg/L。结论沧州市不同水源饮用水中氟化物含量不同,只有自备井及某县的自来水中氟化物超标。应继续做好水质监测工作,要及时对氟化物含量超标的自备井和自来水采取降氟措施,同时还应制定桶装水氟化物的适宜浓度,并在产品标示上标出氟含量。

Detection of Fluoride Content in Drinking Water of Cangzhou City

Objective]To identify the background value of fluoride content in the drinking water of Cangzhou City,and provide basic data for detecting the adulteration in milk with fluoride selective electrode method. Methods]Different types of drinking water were randomly sampled within Cangzhou City.Then the fluoride content in the drinking water was detected with fluoride selective electrode. Results]There were significant differences in fluoride content of drinking water from different sources.The fluoride conte...