The method of acid lixivium/ISE is widely used to determine fluorine in food, but the food is extracted by acid lixivium only by once in the state standard method.

• 摘要酸浸／电极法是当前广泛采用的测定粮食中氟含量的国家标准方法，该方法仅对样品进行一次酸液浸泡测定。