【摘要】 铌的分析测定对于航天、电子、通讯、能源等行业的发展都具有重大意义。近年来各种新试剂、新方法的不断涌现,使铌的光度分析有了新的进展。通过对铌的光度分析试剂予以综述,重点介绍了各类显色剂及其显色反应体系、相应光度分析方法的最大吸收波长、摩尔吸光系数、检测限、干扰情况及其应用。更多还原

【Abstract】 The determination of niobium is very important in the area of spaceflight,electronics,communication,energy industry and so on.Recently various new reagents and detection methods were used to the photometric detection of niobium.In this paper,photometric analysis reagents of niobium were reviewed,pertaining especially to various coloring reagents of niobium and it is conditions of coloring reaction,the maximum absorption,molar absorptivity,limit of detection,as well as interference and application of corresponding methods.更多还原