摘要
研究了新试剂ｍｅｓｏ－四（３－氯－４－磺基苯）卟啉（ｍ－ＣｌＴＰＰＳ４）与钯的显色条件，建立了一种高灵敏光度法测钯的方法。在适当条件下，Ｐｄ（Ⅱ）与ｍ－ＣｌＴＰＰＳ４形成稳定的１∶１（Ｍ∶Ｌ）配合物，其最大吸收波长为４１４ｎｍ，表观摩尔吸光系数可达１．９×１０５Ｌ·ｍｏｌ－１·ｃｍ－１。该方法应用于催化剂中痕量钯的测定。
The color reaction of a new reagent,meso-tetra (3-chloro-4-sulfophenyl ) porphyrin (m-CITPPS4) with palladium was studied, and a highly sensitive method for the spectrophotometric determination of traceamounts of palladium has been developed. At proper conditions, a stable 1: 1 (M: L) complex is formed.The Soret band of the complex lies at 414um. The apparent molar absorptivity is 1. 9×105 L· mol-1.cm-1. This method has been used in the determination of trace amounts of palladium in catalysts.
出处
《化学试剂》
CAS
CSCD
北大核心
1996年第2期98-100,共3页
Chemical Reagents
关键词
卟啉
光度法
钯
催化剂
meso-tetra (3-chloro-4-sulfophenyl ), porphyrin, spectrophotometry, palladium(Ⅱ)
