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测定钯的胶束增溶光度法绝大多数是阳离子表面活性剂体系(表1),非离子表面活性剂体系则极少被研究。K.Uesugi等曾利用漂蓝6B(亦称ECAB)二元体系在pH5.2—5.7范围内光度法测定钯(ε=4.79×10~4)。本文研究了非离子表面活性剂Tween—20存在下,漂蓝6B和Pd(Ⅱ)的显色反应和光度特性,试验和拟定了用该体系测定微量钯的条件和方法,共存离子的干扰及消除,并测定了络合物的组
The majority of micellar solubilizing spectrophotometry for the determination of palladium is a cationic surfactant system (Table 1), while non-ionic surfactant systems are seldom studied. K. Uesugi, etc. have been using the bleaching blue 6B (also known as ECAB) binary system pH5.2-5.7 photometric determination of palladium (ε = 4.79 × 10 ~ 4). In this paper, the color reaction and photometric properties of bleached blue 6B and Pd (Ⅱ) were studied in the presence of nonionic surfactant Tween-20. The conditions and methods for the determination of trace palladium with this system, the interference of coexisting ions and Elimination and determination of the complex group