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四碘荧光素(TIF)与金属离子-1,10-邻菲啰啉(Phen)络阳离子形成的离子缔合物可被氯仿萃取,已用于荧光测定。星座等在碱性溶液内以乙酸乙酯作萃取剂,用光度法测定镉。水溶性大分子化合物如聚乙烯醇,阿拉伯树胶,聚乙二醇等由于分子结构以及在水溶液中的形态不同于低分子表面活性剂,可用作光度分析体系的增溶,增敏,增稳剂。如水溶性大分子化合物与低分子表面活性剂,联合使用,对光度分析体系的增敏作用更明
Ionic Fluorescein (TIF) and metal ion-1,10-phenanthroline (Phen) cation formed ion complex can be chloroform extraction, has been used for fluorescence detection. Constellation, etc. In alkaline solution with ethyl acetate extractant, photometric determination of cadmium. Water-soluble macromolecular compounds such as polyvinyl alcohol, gum arabic, polyethylene glycol and the like can be used as solubilizing, sensitizing and stabilizing systems for photometric analysis systems because of their molecular structure and morphology in aqueous solution different from that of low-molecular surfactants Agent. Such as water-soluble macromolecular compounds and low molecular surfactants, the combination of the sensitometric effect of photometric analysis system is more clear