常用测定银的双硫腙法、二乙基二硫代氨基甲酸钠法和二甲氨基苄基若丹宁法,都要经过萃取,手续较烦。Dagnall等曾用邻二氮菲-溴邻苯三酚红测定银,洪水皆等报导了在阴离子表面活性剂存在下用5-Cl-PADMA测定银,然而利用混合表面活性剂存在下光度法测定银尚未见报导。作者曾研究了在阴—非离子表面活性剂混合液中对Ag~+-5- Common methods for the determination of silver dithizone method, diethyldithiocarbamate method and dimethylaminobenzyl rhodanine method, have to be extracted, the procedure more annoying. Dagnall et al. Used silver phenanthroline-bromopyrogallol red to detect silver, and flood reports both reported silver with 5-Cl-PADMA in the presence of anionic surfactants, whereas spectrophotometry using the presence of a mixed surfactant Silver has not yet been reported. The authors have studied in the anion - non-ionic surfactant mixture Ag ~ + -5-