| 钯与2-(4-安替比林偶氮)-5-氨基苯甲酸的显色反应的研究及其应用 |
| |
| 引用本文： | 褚少凤,刘巍,田应朝,刘松愈.钯与2-(4-安替比林偶氮)-5-氨基苯甲酸的显色反应的研究及其应用[J].云南大学学报(自然科学版),2002,24(4):306-308. |
| |
| 作者姓名： | 褚少凤 刘巍 田应朝 刘松愈 |
| |
| 作者单位： | 1. 云南大学化学系,云南昆明,650091
2. 云南烟草科学研究院,云南昆明,650106 |
| |
| 摘 要： | 合成了新试剂2-(4-安替比林偶氮)-5-氨基苯甲酸(AAAB),并研究与钯(Ⅱ)的选择性光度测定方法.在Tween20存在下,试剂与Pd(Ⅱ)形成2:1的红色配合物,λmax=480nm,ε =1.91×104L·mol-1·cm-1,钯在0～1μg/mL范围内符合比尔定律,选择性较好,已用于石钯渣和Pd-活性碳催化剂中微量钯的测定,无需特别分离.方法简便、快速、准确.
|
| 关 键 词： | 2-(4-安替比林偶氮)-5-氨基苯甲酸 钯 光度分析 |
| 文章编号： | 0258-7971(2002)04-0306-03 |
| 修稿时间： | 2002年1月25日 |
Spectrophotometric study on the colour reaction of Palladium with 2 - (4 - Antipyrinylazo) - 5 - aminobenzoic acid andits application |
| |
| CHU Shao-feng ,LIU Wei ,TIAN Ying-chao ,LIU Song-yu.Spectrophotometric study on the colour reaction of Palladium with 2 - (4 - Antipyrinylazo) - 5 - aminobenzoic acid andits application[J].Journal of Yunnan University(Natural Sciences),2002,24(4):306-308. |
| |
| Authors: | CHU Shao-feng LIU Wei TIAN Ying-chao LIU Song-yu |
| |
| Institution: | CHU Shao-feng 1,LIU Wei 2,TIAN Ying-chao 1,LIU Song-yu 1 |
| |
| Abstract: | The synthesis of a new chromogenic reagent 2-(4-antipyrinylazo)-5-aminobenzoic acid(AAAB) is described.A selective spectrophotometry of palladium with AAAB is developed.In the presence of Tween 20,the palladium forms a red complex with AAAB in molar ratio 1:2 and its maximum absorption of is at 480nm.The molar absorptivity is 1.91×104L·mol-1·cm-1.Beer’s law is obeyed over the range of 0～25μg/25mL,and shows good selectivity.The method has been applied to the determination of microamounts of palladium in catalysts or slag containing palladium without special seperation.The proposed method is simple,rapid and accurate. |
| |
| Keywords: | Antipyrinylazo)-5-aminobenzoic acid spectrophotometry palladium |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《云南大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《云南大学学报(自然科学版)》下载免费的PDF全文 |
