| 基于双氨基三唑硫醚为中性载体的汞离子选择性电极的研究 |
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| 引用本文： | 李艳,柴雅琴,袁若,张丽娜,梁文斌,叶光荣.基于双氨基三唑硫醚为中性载体的汞离子选择性电极的研究[J].分析化学,2007,35(10):1525-1528. |
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| 作者姓名： | 李艳 柴雅琴 袁若 张丽娜 梁文斌 叶光荣 |
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| 作者单位： | 西南大学化学化工学院,三峡库区生态环境教育部重点实验室,重庆,400715 |
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| 基金项目： | 国家自然科学基金(No.20675064)，重庆市自然科学基金(No.SCSTC-2004BB4149,2005BB4100)资助项目 |
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| 摘 要： | 研制了基于双氨基三唑硫醚为中性载体的阳离子选择性电极。实验表明,该电极对Hg2 具有良好的电位响应特性,在pH 2.0硝酸盐缓冲液中,电极电位呈近能斯特响应,线性响应范围为4.0 mg/L~20 g/L,斜率为33.4 mV/dec.(25℃),检出限为1.7 mg/L。该电极响应时间短(<10 s),pH范围较宽(1.3~3.3)。将该电极用于实际水样和二元混合溶液中Hg2 的检测,其结果令人满意。
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| 关 键 词： | 双氨基三唑硫醚 聚氯乙烯膜 汞离子 离子选择性电极 |
| 修稿时间： | 2007-02-05 |
Mercury(Ⅱ) Ion-selective Polymeric Membrane Sensor Based on Bis ( amino-triazole sulfurethers) |
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| Li Yan,Chai Ya-Qin,Yuan Ruo,Zhang Li-Na,Liang Wen-Bin,Ye Guang-Rong.Mercury(Ⅱ) Ion-selective Polymeric Membrane Sensor Based on Bis ( amino-triazole sulfurethers)[J].Chinese Journal of Analytical Chemistry,2007,35(10):1525-1528. |
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| Authors: | Li Yan Chai Ya-Qin Yuan Ruo Zhang Li-Na Liang Wen-Bin Ye Guang-Rong |
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| Institution: | College of Chemistry and Chemical Engineering, Southwest University and Key Laboratory of Eco-Environments in Three Gorges Region, Ministry of Education, Chongqing 400715 |
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| Abstract: | A novel PVC(polyvinyl chloride) membrane electrode that exhibits high potentiometric response for Hg2 based on bis(amino-triazole sulfurethers)(BATS) as an suitable neutral carrier was developed.The electrode exhibits a wide concentration range of 4.0 mg/L-20 g/L(the limit of detection is 1.7 mg/L) for Hg(NO3)2 with a Nernstian slope of 33.4 mV/decade at pH 2.0.It has a fast response time of about 10 s and can be used for at least 2 months.The membrane sensor could be used in pH 1.3-3.3 and revealed good selectivity for Hg2 over a wide variety of other metal ions.The electrode was applied to the determination of mercury in waste water and different binary mixtures with satisfactory results. |
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| Keywords: | Bis(amino-triazole sulfurethers) polyvinyl chloride membrane mercury ion-selective electrode |
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