二氯化锡—二氯化汞—重络酸钾容量法测定铁具有准确、简便、快速等优点,为多年来国内外广泛采用的测铁方法,但由于使用了有毒的汞盐,污染环境,成为此法的严重缺陷。随着人们对汞盐危害的认识,无汞测铁已经引起了广大分析工作者的重视,并已在国内外取得了较大的进展。这方面已由彭根初、周伯劲、符斌等同志作了详细的综述与评论。本文拟在无汞测铁方面作一些简要的展望,以供参考。 The determination of iron with stannous dichloride-mercury dichloride-potassium hexanoate volumetric method has the advantages of accuracy, simplicity and rapidity. It is a widely used iron-measuring method widely used at home and abroad for many years. However, due to the use of toxic mercury salts and pollution of the environment , Has become a serious flaw in this act. With people’s understanding of the harm of mercury salts, mercury-free measuring iron has drawn the attention of the majority of analysts and great progress has been made both at home and abroad. In this regard, Peng Genchu, Zhou Bojin, Fu Bin and other comrades made a detailed review and commentary. This article intends to make some brief outlook on mercury-free measuring iron for reference.