用氟化镧单晶制成的氟电极已是应用最广的离子选择性电极之一。但不同掺杂及拉制方法对电极性能影响的比较,研究尚少.本文报告了就此问题所进行的一些研究结果。实验部分一单晶的拉制及掺杂的方法1 下牵法(坩埚下降法):在铂坩埚中,使高纯度的氧化镧(99.99%),以氢氟酸反复处理几次,蒸干.用纯水洗净,干燥。将干燥后的氟化镧粉末放在单晶 Fluorine electrodes made of lanthanum fluoride single crystals have been one of the most widely used ion selective electrodes. However, the influence of different doping and drawing methods on the performance of the electrode has not been studied yet.This paper reports some research results on this issue. Experimental part of a single crystal pulling and doping method 1 under the traction (crucible down method): In a platinum crucible, the high purity lanthanum oxide (99.99%), repeated treatment with hydrofluoric acid several times, evaporated Wash with pure water and dry. The dried lanthanum fluoride powder is placed on a single crystal