| 2-(6-甲基苯并噻唑)偶氮间苯二酚与铂显色反应研究 |
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| 引用本文： | 王园朝,肖明亮.2-(6-甲基苯并噻唑)偶氮间苯二酚与铂显色反应研究[J].分析科学学报,2001,17(2):120-122. |
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| 作者姓名： | 王园朝 肖明亮 |
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| 作者单位： | 咸宁师范高等专科学校化学系, |
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| 基金项目： | 湖北省教委青年自然科学基金资助课题 |
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| 摘 要： | 本文研究了显色剂 2 - ( 6-甲基苯并噻唑偶氮 )间苯二酚 ( MBTAP)与铂 ( )的显色反应。在表面活性剂溴代十四烷吡啶存在下 ,于 p H5 .0的醋酸溶液中 ,形成紫红色配合物 ,其最大吸收波长在 61 9nm,表观摩尔吸光系数为 ε=1 .1 3× 1 0 5L·mol- 1· cm- 1。铂元素含量在 0～ 1 0 .0 μg/2 5 m L范围内服从比尔定律。方法用于 Pt-C催化剂样品的分析 ,结果令人满意
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| 关 键 词： | 分光光度法 2－（6－甲基苯并噻唑）偶氮间苯二酚 铂 溴代十四烷吡啶 测定 铂催化剂 |
| 文章编号： | 1006-6144(2001)02-0120-03 |
| 修稿时间： | 2000年9月5日 |
Study of the Color Reaction of Platinum with the Reagent 2- (6-Methylbenzothiazolylazo)-Resorcinol |
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| Wang Yuan-chao,Xiao Ming-liang.Study of the Color Reaction of Platinum with the Reagent 2- (6-Methylbenzothiazolylazo)-Resorcinol[J].Journal of Analytical Science,2001,17(2):120-122. |
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| Authors: | Wang Yuan-chao Xiao Ming-liang |
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| Abstract: | The color reaction of platinum with 2-(6-methylbenzothiazolylazo)-resorcinol MBTAP is investigated in this paper. With the addition of a surfactant of bromotetralkylpyridine, the fuchsia complex of Pt(Ⅳ) with MBTAR is obtained in pH 5.0 phosphate buffer, of which the mole ratio is Pt (Ⅳ):MBTAR=1:2. The maximal absorption of the complex is at 619 nm with a apparent molar absorptivity of 1.13×105 L·mol-1·cm-1. Beer's law is obeyed over the range of 0～10.0 μg Pt (Ⅳ)/25 mL. The proposed method is applied to the analysis of platinum in Pt-C catalyst sample with good results. |
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| Keywords: | Spectrophotometry 2 (6 Methylbenzothiazolylazo) resorcinol Platinum Bromotetralkylpyridine |
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