C_(12)-2-C_(12)·2Br选择性膜电极的制备及性能  

Preparation and Properties of C_(12)-2-C_(12)·2Br Selective Membrane Electrode

作　　者：刘新[1] 林翠英[1] 赵剑曦[1] 

机构地区：[1]福州大学化学化工学院应用化学系,福建福州350002

出　　处：《精细化工》2005年第10期756-758,共3页Fine Chemicals

基　　金：国家自然科学基金(20173010;20373012);福建省教育厅科技资助项目(JB03013)~~

摘　　要：以四苯硼酸钠与季铵盐Gemini表面活性剂(C12-2-C12·2Br)生成的沉淀物质作为电活性物质制备选择性膜(PVC)电极,在所考察的15～45 ℃内,膜电极对C12-2-C12·2Br水溶液的检测下限浓度为1.5×10-6 mol·L-1,线性响应浓度为2.5×10-6～9.0×10-4 mol·L-1,响应斜率为(30.0±2) mV/decade.电极适用于pH=6～12水溶液,其稳定性和重现性均良好.The C12-2-C12·2Br selective membrane electrode was prepared using a deposit of C12-2-C12·2Br and sodium tetraphenylborate as the electrical active compound and PVC as the membrane material. Over the range of 15 - 45 ℃, the detection limit for C12-2-C12·2Br was 1.5 × 10^-6 mol · L^-1. The concentration range of linear response and the response slope were respectively 2.5 × 10^-6 ～ 9.0 × 10-4 mol ·L^-1 and （30. 0 ± 2） mV/decade. The membrane electrode was suitable to work in pH =6 ～ 12 aqueous solutions and had good stability and repeatability during the determination.

关 键 词：选择性膜电极 PVC膜 季铵盐Gemini表面活性剂 

分 类 号：TQ423[化学工程]