| 新显色剂3,5-二（4-溴苯氨基重氮基）苯甲酸的合成及其与Ni（Ⅱ）的显色反应研究 |
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| 引用本文： | 乔永生,孟双明,刘慧君.新显色剂3,5-二（4-溴苯氨基重氮基）苯甲酸的合成及其与Ni（Ⅱ）的显色反应研究[J].光谱实验室,2009,26(5):1179-1182. |
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| 作者姓名： | 乔永生 孟双明 刘慧君 |
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| 作者单位： | 1. 太原理工大学精细化工研究所,太原市,030024;山西大同大学化学与化工学院,山西省大同市,037009
2. 山西大同大学化学与化工学院,山西省大同市,037009 |
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| 摘 要： | 合成了一种新型的双三氮烯类显色剂3,5-二（4-溴苯氨基重氮基）苯甲酸,并对该试剂与Ni（Ⅱ）的显色反应进行了研究。实验表明,在Triton X-100存在下,pH 10.0的硼砂-氢氧化钠缓冲溶液中,该试剂与Ni（Ⅱ）形成了2：1的红色络合物,其最大吸收波长位于510nm处,表观摩尔吸光系数ε为1.96×10^5L·mol^-1·cm^-1,Ni（Ⅱ）的质量浓度在0一10μg范围内遵守比耳定律。该试剂用于分光光度测定铝合金标样中镍,测定值与认定值相符。
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| 关 键 词： | 3 5-二(4-溴苯氨基重氮基)苯甲酸 分光光度法 镍 显色反应 |
Synthesis of a New Chromogenic Reagent 3,5-Bis(4-Bromopenylamino-diazo) Benzoic Acid and Study on Its Color Reaction with Nickel |
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| QIAO Yong-Sheng,MENG Shuang-Ming,Liu Hui-Jun.Synthesis of a New Chromogenic Reagent 3,5-Bis(4-Bromopenylamino-diazo) Benzoic Acid and Study on Its Color Reaction with Nickel[J].Chinese Journal of Spectroscopy Laboratory,2009,26(5):1179-1182. |
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| Authors: | QIAO Yong-Sheng MENG Shuang-Ming Liu Hui-Jun |
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| Institution: | a;b;Institute of Special Chemicals;Taiyuan University of Technology;Taiyuan 030024;P.R.China;College of Chemistry and Chemical Engineering;Shanxi Datong University;Datong;Shanxi 037009;P.R.China |
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| Abstract: | A new Chromogenic reagent 3, 5-bis （4-bromopenylaminodiazo） benzoic acid （BBPAA） has been synthesized and the color reaction conditions of BBPAA with Ni（ II ） have been studied. In the buffer solution of Na2B4O7-NaOH at pH 10.0 and in the presence of TritonX-100,the color reagent reacts with nickel （ II ） to form a red complex （2 ： 1）. The maximum absorption wavelength of the complex is at 510 nm, and the apparent molar absorptivity is 1.96×10^5L·mol^-1·cm^-1. Beer＇s law is obeyed in the range of 0--10μg for nickel （ II ）. This method has been used for the determination of nickel in aluminum alloy samples with RSD of 2.3%-- 3.5%（n=5）. |
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| Keywords: | 3 5-Bis（4-Bromopenylaminodiazo） Benzoic Acid Spectrophotometry Nickel Color Reaction |
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