Gran作图法测定DMF中的氟

Determination of F- in DMF by Gran's Polt

本文用氟离子选择性电极Ｇｒａｎ作图法测定了二甲基甲酰胺（ＤＭＦ）中的氟。此方法准确、简便、快速、抗干扰能力较强。可用于测定含量大于１．０×１０－６ｍｏｌ／Ｌ的样品。

In this paper,fluoride in DMF was determined by Gran's plot with fluoride ion selective electrode.Besides accuracy,convenience and rapidity,the method posses the ability not to be distrupted.It is suitable for thoses samples containning fluoride more than 1.0×10-6mol/L.