PAN-S as a Metallochromic Indicator PAN-S作为络合滴定指示剂的研究
Nonionic surfactants used in EDTA titration method 1-2 ( pyridylazo)-2-naphthol-nonionic surfactants system used as metallochromic indicator 非离子表面活性剂-PAN体系用作络合滴定指示剂
The structure of azo dyes has attracted considerable attention in recent times, since they represent the largest class of dyes used in industry, and also has extensive applicability in analytical chemistry as acid-base, redox and metallochromic indictors. 近年来,偶氮类染料的结构研究引起了人们的注意,因为它们是工业上所使用染料的最大类,并且作为酸碱指示剂、氧化还原指示剂、金属显色指示剂在分析化学中有着广泛的应用。