碱性染料萃取光度法测定锡已有报导,摩尔吸光系数约为0.85～1.75×10~5·mole~(-1)·cm~(-1)·硫氰酸盐-孔雀绿-明胶体系测定锡的灵敏度也不理想。云南大学徐其享教授等详尽地研究了锡硫氰酸盐与各类碱性染料,如孔雀绿、甲基绿结晶紫、乙基紫、罗丹明B、罗丹明6G、次甲基蓝及耐尔蓝等形成离子缔合物的条件及分析性质,并比较了各种配比非离子表面 Determination of tin by basic dye extraction spectrophotometry has been reported. The molar absorption coefficient is about 0.85 ~ 1.75 × 10 ~ 5 · mol ~ (-1) · cm -1. The thiocyanate-malachite green-gelatin system Tin sensitivity is not ideal. Professor Xu Qishan of Yunnan University conducted a thorough study of tin thiocyanate and various basic dyes such as malachite green, methyl green crystal violet, ethyl violet, rhodamine B, rhodamine 6G, methine blue and Nile Blue and other ions to form the association of the nature and analytical properties and comparison of various non-ionic surface ratio