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基于Schiff--base结构化合物载体的汞离子选择性电极的制备与表征
Authors
丁家旺
张军
秦伟
赵月前
Publication date
1 January 2011
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~(-4)mol/L, 响应斜率为(29.3±0.3)mV/dec, 检出限为2.6×10~(-7) mol/L; 该电极响应速率快(小于12 s), 可在较宽的pH范围内(pH 2.8~5.6)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
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Last time updated on 19/08/2023