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现在测氟是利用基于氟-铈(镧)和氟试剂组成的三元络合物的直接光度法。直接法比间接法精密度高,选择性也较好。但是存在一个比较复杂的问题,就是要把氟从干扰元素中分离出来。许多元素都影响三元络
Fluorine now is a direct photometric method using ternary complexes based on fluoro-cerium (lanthanum) and fluorine reagents. Direct method than the indirect method of high precision, selectivity is better. However, there is a more complicated issue that is to separate fluorine from interfering elements. Many elements affect the triplet