As fluororesin is decomposed by oxygen flask method,fluorine atoms in the fluororesin are converted into ions,which is then determined by titration method with lanthanum nitrate standard solution.

• 讨论了以氧气瓶燃烧法分解氟树脂,把氟树脂中的氟转化为氟离子,然后以硝酸镧标准溶液进行滴定,从而测定出氟树脂中的氟含量,再根据定量关系计算出氟树脂涂料中的氟含量的方法。