离子选择性电极是七十年代发展起来的一项新技术,是电化学的一个重要分支。由于它具有简单、快速、选择性好、灵敏度高,以及便于实现自动化等优点,近年来已在国内外分析化学领域内获得了广泛的应用和发展。到目前为止,国内外能提供的商品电极已近五十多种,为冶金、地质、国防、环境保护、土壤、水质等部门所广泛应用。我国从1972年开始,先后有中国科学院南京土壤研究所、上海冶金研究所、湖南大学、二机部第五研究所等单位进行了这方面的试验研究工作。我所与工厂自1974年以来,也分别利用氟离子电极、钠离子电极、四氟硼酸根离子电极和氨气敏电极,对钢铁、有色金属和非金属材料中的一些元素进行了测定,取得了较 Ion selective electrode is a new technology developed in the seventies, is an important branch of electrochemical. In recent years, it has been widely applied and developed in the field of analytical chemistry both in China and abroad due to its advantages such as simple, fast, good selectivity, high sensitivity, and convenience of automation. So far, almost 50 kinds of electrodes can be supplied at home and abroad, which are widely used in metallurgy, geology, national defense, environmental protection, soil, water quality and other departments. Since 1972, China has carried out experiments and studies in this area successively on the Nanjing Institute of Soil Science, Chinese Academy of Sciences, Shanghai Institute of Metallurgy, Hunan University, and the Fifth Institute of the Second Machinery Department. Since 1974, our factory and our factory have also used fluoride ion electrode, sodium ion electrode, tetrafluoroborate ion electrode and ammonia gas sensing electrode respectively to measure some elements in steel, non-ferrous metals and non-metallic materials. More than