【摘要】 研究了在阳离子表面活性剂溴化十六烷基三甲基铵（CTMAB）和非离子表面活性剂乳化剂OP所组成的混合表面活性剂存在下二价锰与邻硝基苯基萤光酮（o-NPF）的显色反应。体系适宜的反应酸度是pH8.4～11.0,最大吸收波长615nm,最大摩尔吸光系数为1.53x10⁵l·mol^-1·cm^-1,锰与ONPF的络合比为1:2。更多还原

【Abstract】 The photometric characteristics of the colour reaction of Mn（Ⅱ） with o-nitrophenylfluorone （o-NPF） in the presence of mixed surfactant cetyltrimethylammonium bromide （CTMAB）— emulsifier polyethyleneglycol octylphenylester （OP） have been studied. The results showed that the molar absorptivity was increased, the useful pH range was widened and the stability of this complex was enhanced. This complex is formed in a medium of pH 8.4～11.0. The molar absorptivity of the complex is 1.53× 10⁵l·mol^-1· cm^-1 at 615nm. The molar ratio of Mn（Ⅱ） to o-NPF is 1:2.更多还原