用光度分析法测定镓,常用离子缔合物萃取法,显色剂大多是用罗丹明B等碱性染料。近年来,为了提高分析灵敏度,改善操作条件,有报导研究采用胶束增溶法,所用显色剂的种类也越来越广。本实验仍选择了以罗丹明B为显色剂,用苯——乙酸丁酯萃取,盐酸酸度为6.0mol/L的离子缔合物萃取法,。为适应多种试样的测定,补做了个别条件实验,并测定了几种不同类型试样中镓的含量,分析精度符合要求。 Determination of gallium by spectrophotometry, commonly used ion-association extraction method, most of the color reagent with rhodamine B and other basic dyes. In recent years, in order to improve the analysis sensitivity and improve the operating conditions, it is reported that the use of micellar solubilization method, the type of developer used more and more widely. The experiment still chose rhodamine B as a reagent, with benzene - butyl acetate extraction, hydrochloric acid acidity of 6.0mol / L ion association extraction method. In order to adapt to the determination of a variety of samples, make up individual conditions experiments, and measured the content of gallium in several different types of samples, the analysis accuracy to meet the requirements.