摘要
本文研究了在碱性介质中，锡（Ⅳ０－溴化二甲氨基苯基萤光酮（ＢＤＭＡＦ）－溴化十六烷基吡啶（ＣＰＢ）－Ｔｗｅｅｎ－８０体系的高灵敏配合显色反应，反应的适宜酸度为１０．０—１１．５２，配合物的最大吸收在５６０ｎｍ表现。值为９．５×１０５１·ｍｏｌ－１·ｃｍ－１，锡含量在０．２－７．５μｇ／２５ｍｌ范围内服从比耳定律，研究了外加离子的干扰拟定的方法可用于Ｐｈ（ＮＯ３）２中微量锡的测定．
A colour reaction of Sn(Ⅳ ) with bromopyrogallol rad (BDMAF)Tween-80and cetylpyridinium bromide (CPB) has been studied spectrophotometricauy Sn (Ⅳ)forms a redpurple complex with the abovereagents at PH 10. 0～11. 52 exhibiting maximum absorption at 560 nm Beer' s law isobeyed for Sn(Ⅱ ) in the range of 0. 2-7. 5μgin 25 ml with the molar absorptivity of 9. 5×105 1· mol-1 cm -1. The effects of Sn(Ⅳ)are examined microamoumts of Sn in pure Ph(NO3)2have been determined.
出处
《松辽学刊（自然科学版）》
1994年第4期74-77,共4页
Songliao Journal (Natural Science Edition)
