| 1-偶氮苯-3-(3-硝基-5-氯-2-吡啶)三氮烯的合成及其与镍(Ⅱ)离子的显色反应 |
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| 引用本文： | 郑云法,张春牛,周丽君,江雁.1-偶氮苯-3-(3-硝基-5-氯-2-吡啶)三氮烯的合成及其与镍(Ⅱ)离子的显色反应[J].化学研究,2005,16(4):83-85. |
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| 作者姓名： | 郑云法 张春牛 周丽君 江雁 |
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| 作者单位： | 丽水学院,化学系,浙江,丽水,323000 |
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| 基金项目： | 丽水学院重点课题（KZ04006）. |
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| 摘 要： | 合成了新显色剂1-偶氮苯-3-(3-硝基-5-氯-2-吡啶)三氮烯(ABNCPDT),并研究了它与镍的显色反应.在pH 10.5的Na2B4O7-NaOH缓冲溶液中,TX-100表面活性剂存在下,试剂与镍生成4∶1型红色配合物.配合物的最大吸收峰位于540 nm,表观摩尔吸光系数为1.86×105L.mol-1.cm-1.N i2+浓度在0~480μg/L范围内符合比尔定律.用拟定方法测定铝合金中微量镍,结果满意.
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| 关 键 词： | 偶氮苯 三氮烯 镍 分光光度法 显色剂 |
| 文章编号： | 1008-1011（2005）04-0083-03 |
| 收稿时间： | 2005-08-03 |
| 修稿时间： | 2005年8月3日 |
Synthesis of 1-Azobenzene-3-(3-nitro-5-chloro-2-pyridyl) triazene and Its Color Reaction with Nickel(Ⅱ)Cation |
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| ZHENG Yun-fa,ZHANG Chun-niu,ZHOU Li-jun,JIANG Yan.Synthesis of 1-Azobenzene-3-(3-nitro-5-chloro-2-pyridyl) triazene and Its Color Reaction with Nickel(Ⅱ)Cation[J].Chemical Research,2005,16(4):83-85. |
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| Authors: | ZHENG Yun-fa ZHANG Chun-niu ZHOU Li-jun JIANG Yan |
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| Abstract: | 1-Azobenzene-3-(3-nitro-5-chloro-2-pyridyl)triazene(ABNCPDT) was synthesized and its color reaction with nickel was investigated.In the presence of the surface active agent Triton X-100 and in the Na_(2)B_(4)O_(7)-NaOH medium of pH 10.5,ABNCPDT forms a red complex with Ni(Ⅱ).The apparent molar Absorbtivity of the complex is 1.86×10~(5) L ·mol~(-1)·cm~(-1) at 540 nm.The molar ratio of Ni(Ⅱ) to ABNCPDT is 1∶4.Beer′s law is well obeyed in the range of 0～480 μg/L for nickel.The method was applied to the direct determination of nickel in aluminium alloys with satisfactory results. |
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| Keywords: | azobenzene triazene nickel spectrophotometry chromogenic agent |
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