| 基于铝酞菁为载体的亚硝酸根选择性电位传感器的研制 |
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| 引用本文： | 许文菊,柴雅琴,袁若,张婷婷.基于铝酞菁为载体的亚硝酸根选择性电位传感器的研制[J].西南农业大学学报,2008,30(7). |
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| 作者姓名： | 许文菊 柴雅琴 袁若 张婷婷 |
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| 作者单位： | 西南大学化学化工学院,重庆400715 |
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| 基金项目： | 国家自然科学基金(20675064)%重庆市自然科学基金(2005BB4100) |
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| 摘 要： | 制备了基于铝酞菁为中性载体对亚硝酸根离子（NO2^-）具有独特选择性的一种聚合膜（PVC）电极。该电极对NO2^-呈现出反-Hofmeister选择性行为和近Nernst电位响应，其线性范围为1．0×10^-1～1．5×10^-6mol／L，检测下限为9．5×10-^-7mol／L，斜率为（-58．3±0．5）mV／decade。该电极作为直接电位法的指示电极，能运用于废水中亚硝酸的测定，结果令人满意。
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| 关 键 词： | 铝酞菁 亚硝酸根 离子选择性电极 |
A Nitrite-Selective Potential Sensor Based on an Aluminum-Phthalocyanine Complex as the Ionophore |
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| Abstract: | A poly (vinyl chloride) (PVC) membrane electrode based on an aluminum-phthalocyanine (AIPc) com-plex as a neutral carrier with unique selectivity to nitrite ion (NO-<>,2) was prepared. The proposed electrode was shown to exhibit anti-Hofmeister selectivity behavior and a near-Nernst potential response to NO-2 over a linear 0.5 mV per decade. This electrode was applied, as an indicator electrode in the direct potentiometric method, to the determination of nitrite in wastewater, and satisfactory results were obtained. |
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