论文部分内容阅读
Shibata等在1973年发表了5-Cl-PA-DAB和钯的反应的研究工作。国内也在5-Cl-PADAB及3,5-C1_2-PADAT与把反应方面进行了一些工作,可以看出,PADAT类显色剂一般都具有较高的选择性和灵敏度。进一步探讨这类显色剂的应用是具有实际意义的,有关5-Br-PADAT和钯的作用,我们尚未见到报道。本文研究了5-Br-PADAT和钯反应的适宜条件,先在pH 5,试剂与钯形成络合物,最大吸收在580纳米。再用盐酸酸化,此时最大
Shibata et al. Published in 1973 a study of the reaction of 5-Cl-PA-DAB with palladium. Domestic 5-Cl-PADAB and 3,5-C1_2-PADAT reaction with some of the work carried out, we can see that, PADAT class developers generally have a high selectivity and sensitivity. To further explore the application of these developers is of practical significance, we have not yet seen on the role of 5-Br-PADAT and palladium. In this paper, the suitable conditions for the reaction of 5-Br-PADAT with palladium were studied. At pH 5, the complex formed with palladium and the maximum absorption was at 580 nm. Acidification and then hydrochloric acid, this time the largest