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以分光光度法研究了在表面活性剂胶束溶液中铝-邻苯二酚紫络合物与氯化十四烷基二甲基苄基铵(zeph),溴化十六烷基三甲铵(溴化HTA)或氯化四苯基磷(氯化TPP)所形成的离子对的分配平衡。在胶束中离子对的溶解引起光谱的紫移。测定铝选择了TPP体系,因为TPP离子对在水和曲拉通X-100之间的分配,比HTA或zeph离子对的少。在0.1%曲拉通X-100溶液中,波长为710纳米处,摩尔吸收系数为64000升/摩尔·厘米。本方法曾用于测定海藻中的铝。
The photodegradation of aluminum-pyrocatechol violet complex with surfactant in surfactant micellar solution was studied spectrophotometrically with tetradecyl dimethylbenzyl ammonium (zeph), cetyltrimethylammonium bromide Bromination HTA) or tetraphenylphosphonium chloride (chlorination TPP) formed by the balance of the distribution of the ion pair. Dissociation of ion pairs in the micelles causes a violet shift of the spectrum. The TPP system was chosen for the determination of aluminum because the TPP ion pair is less partitioned between water and the Triton X-100 than the HTA or zeph ion pair. In the 0.1% Triton X-100 solution, the wavelength is 710 nm and the molar absorption coefficient is 64,000 L / mol · cm. This method was used to determine aluminum in seaweed.