A new method for determination of fluorine in fluoroquinolone drugs by oxygen-flask combustion andfluorine ion selective electrode was presented. It was comparable with the method in Ch.P.

• 提出了用氧瓶燃烧-氟离子选择电极测定氟喹诺酮类药物氟含量的新方法。测定了几种该类药物的氟含量,并和中国药典法进行了比较。