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前言 1969年气敏氨电极问世以来,国外已有不少报道。近几年来,国内也做了不少工作。我们在用气敏隔膜氨电极直接电位法测定难熔金属和钢铁中氮方面作了一些试验研究,获得较满意结果。实验表明:气敏隔膜氨电极是目前金属材料中测定氮的一种十分简便而有效的工具。
Introduction Since the advent of gas-sensing ammonia electrodes in 1969, many reports have been made abroad. In recent years, China has also done a lot of work. We have done some experimental studies on the determination of nitrogen in refractory metals and steel by the direct electrode potential method of ammonia gas sensor. Experiments show that gas sensor ammonia electrode is a very simple and effective tool for the determination of nitrogen in metallic materials.