氯代十六烷基吡啶存在下钯与1，4－双肼酞嗪新显色反应的研究  

Spectrophotometric Study on the ColourReaction of Palladium(Ⅱ)with 1,4-dihy-drazino-phthalazine in the presence ofcationic Surfactant CPC.

作　　者：徐德良[1] 巩卯英 李国胜[1] 江丽仙[1] 高绍仪 

机构地区：[1]广州氮肥厂,华能蚌埠无水柠檬酸厂

出　　处：《分析试验室》1996年第2期47-49,共3页Chinese Journal of Analysis Laboratory

摘　　要：本文研究了１，４－双肼酞嗪（ＤＨＰＨ）与钯的配合显色反应，在阳离子型表面活性剂氯代十六烷基吡啶存在下，在０．１～０．２ｍｏｌ／ＬＨＣｌ溶液中，试剂与钯形成１：１的稳定的黄绿色配合物，最大吸收峰在４００ｎｍ处，表观摩尔吸光系数为２．６×１０￣４，钯量在０～５０μｇ／２５ｍＬ范围内股从比尔定律，方法简便快速，选择性好，已用于催化剂中钯的测定，结果满意。A new colour reaction of palladium with1,4-dihydrazinophthalazine(DHPH ) systemhas been studied speetrophotoinetrically, In asolution of0.1 ～ 2mol/L NCl and in thepresence of cationic surfactant CPC,Pd re-acts with DHPH to form a stable yellow-green complex with composition ratio of Pd(Ⅱ)/DHPH of 1:1.The molar absorptivityis 2.6×10￣4 L·mol￣(-1)cm￣(-1)at 400nm. Beer's Law is obeyed in the range of 0～50μg/25mL for Pd.The mothod has been oppliedto thedirectdetermination of Pd in Pd-con-taining catalysts with satisfactory sesuets

关 键 词：双肼酞嗪 光度法 催化剂 DHPH 

分 类 号：O614.823[理学—无机化学] O657.32[理学—化学]