【摘要】 本文研究了非水溶性卟啉α,β,γ,δ-四(2-氯苯基)卟啉与铑的显色反应。在 pH3 的氯乙酸-乙酸钠的缓冲溶液中,加入表面活性剂十二烷基苯磺酸钠,在85℃恒温水浴中加热10分钟,铑的浓度在0—0.7μg/25ml 范围内符合比耳定律,摩尔吸光系数为5.3×10~6.通过用磷酸三丁酯-四氯化碳混合溶剂萃取分离,测定了铂铑合金中的铑,结果令人满意。更多还原

【Abstract】 In this paper,the complem reaction of α,β,γ,δ-tetra-（2-chloro- phenyl）porphine with rhodium in the presence of surfactant,sodium dodecyl benzene sulfonate,and a new higly sersitive method for spectr- ophometric determination of mico amounts of rhodium has been developed. Beer’s law was obeyed in 0—0.7μg/25ml.The molar absorptivity was found to be 5.3×10⁶ dm³·mol^-1·cm^-1 at 417nm.更多还原