近年来,BF_4~-电极被成功地应用于钢铁中5×10~(-4)～0.x%硼的测定,方法简便、快速、准确。本文根据卤水除硼工艺试验的要求,研究并拟定了以 BF_4~-电极测定卤水、卤块和氧化镁中微量硼的方法,取得较好的效果。基本原理试样中硼经氟化处理生成 BG_4~-后,调节溶液 pH～4,将 BF_4~-电极和甘汞电极浸入待测溶 In recent years, BF_4 ~ - electrode has been successfully applied to the determination of 5 × 10 -4% ~ 0.x% boron in steel. The method is simple, rapid and accurate. In this paper, according to the requirement of brine boron removal test, the method of measuring trace boron in brine, halides and magnesia with BF_4 ~ - electrode was studied and developed. Fundamentals After boron was fluoridated to produce BG_4 ~ -, the pH of the solution was adjusted to ~ 4. The BF_4 ~ - electrode and the calomel electrode were immersed in the solution to be tested