氟离子选择电极标准加入法测氟化物,因其操作简单、快速等优点应用日益广泛。但易受各种因素影响,产生较大误差。为提高标准加入法测氟化物的准确度,我们对各种因素进行了分析和控制,取得了较为满意的测定结果。1 氟电极性能检查1.1 响应时间 一般在氟化物浓度为10~(-6)mol/L的溶液中电极响应时间在4min左右。1.2 线性范围 正常的氟电极响应的线性范围在10~0～10~(-6) Fluoride ion selective electrode standard method of adding fluoride test, because of its simple, fast and so the advantages of increasingly widespread use. But vulnerable to various factors, have a greater error. In order to improve the accuracy of standard addition of fluoride, we analyzed and controlled various factors and obtained satisfactory results. 1 fluorine electrode performance inspection 1.1 response time is generally in the fluoride concentration 10 ~ (-6) mol / L solution in the electrode response time of 4min or so. 1.2 The linear range of the normal fluorine electrode response linear range of 10 ~ 0 ~ 10 ~ (-6)