摘要
研究了在ＯＰ－１０存在下，Ｃｒ（Ⅲ）与溴邻苯二酚红及二安替比林甲烷所组成的三元体系的协同显色反应．在优化条件下，Ｃｒ（Ⅲ）与溴邻苯三酚红及二安替比林甲烷形成组成比为１：２：４、摩尔吸光系数为６．０２×１０４的三元离子缔合物（λｍａｘ＝５７８ｕｍ）．本文还对二安替比林甲烷的协同显色作用及Ｃｒ（Ⅵ）与溴邻苯二酚红的反应机理作了探讨．
The synergistic chromogenic reaction of Cr(Ⅲ) with both bromopyrogallol red (BPR) and diantipyryl-methane(DAM)in the presence of OP-10 has been studied. Also investigated were the synergistic chromophoric effect of DAM on Cr(Ⅲ)-BPR complex and the mechanism of the reaction of Cr(W) with BPR. Under the optimum conditions,Cr(Ⅲ) forms a ternary ionassociation complex with composition ratio of Cr: BPR: DAM being 1: 2: 4 and molar absorptivity being 6. 02 ×10'(λmax=578um).
出处
《山东大学学报（自然科学版）》
CSCD
1996年第2期231-236,共6页
Journal of Shandong University(Natural Science Edition)
关键词
铬
溴邻苯三酚红
二安替比林甲烷
协同显色反应
chromium
bromopyrogallol red
diantipyrylmethane
UV-V is absorption spectrometry
Synergistic chromogenic reaction
