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Preparation and Characterization of a Mercury(Ⅱ)-selective Polymeric Membrane Electrode
Authors
*秦伟
丁家旺
张军
赵月前
Publication date
31 December 2010
Publisher
Abstract
高产率合成了一种新的Schiff-base结构化合物,并将其表征为高选择性聚合物膜汞离子选择性电极载体。考察了不同增塑剂及离子交换剂对膜电极响应性能的影响,在最佳膜组分条件下测得该电极对汞离子的线性响应范围为1.0×10-6~3.0×10-4mol/L,响应斜率为(29.3±0.3)mV/dec,检出限为2.6×10-7mol/L;该电极响应速率快(小于12 s),可在较宽的pH范围内(pH2.8~5.6)使用,且其它常见碱金属、碱土金属以及过渡金属离子对该测试电极的干扰小;可准确检测自来水中汞离子的浓度。  
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Last time updated on 18/09/2018