中文摘要：

以恩施市居民饮用水为研究对象，通过氟离子选择电极法对恩施市自来水、恩施市纯净水、沸腾的自来水及购买的康师傅矿物质水中的氟离子含量进行测定，结果表明，恩施城区居民主要饮用水的氟离子含量符合国家水质质量标准．该方法简单快速、结果准确，可用于饮用水及其他水质中氟含量的测定．

英文摘要：

Taking Enshi residents the drinking water for Enshi urban residents as the research object, we measured the water from the tap, pure water, boiled water and the purified water bought at the market through fluorine ion selective electrode method.The results show that the quality of water in Enshi urban area is good and complies with the National Water Quality Standards about the concentration of fluorine. This method is not only simple, ral~id, accurate but also can be used for the determination of fluorine con- tent in drinking water and other qualities of water.