PVC盐酸氨溴索选择性电极的制备  

PVC Membrane Ambroxol Selective Electrodes

作　　者：杨阿喜[1] 金根娣[2] 徐琴[3] 

机构地区：[1]扬州卫生学校 [2]扬州教育学院,225002 [3]扬州大学化学化工系,225002

出　　处：《化工时刊》2001年第6期19-21,共3页Chemical Industry Times

摘　　要：以四苯硼酸氨溴索离子缔合物做电活性材料,制成氨溴索PVC电极,对影响电极性能的诸因素作了研究,以最佳条件制备的电极线性范围为1.0×10^(-2)～9.0×10^(-6)mol/L,平均斜率为56.2 mV/decade,检测下限为4.5×10^(-6)mol/L,在PH<5.0的范围内适用,电极响应快,重现性和稳定性好,抗干扰能力强,适用于氨溴索样品的快速测定。PVC membrane ambroxol selective electrodes made with ambroxol - tetraphenylborate were studied. When using ambroxol - tetraphenylborate as active material and di - ( 2 - ethylhexyl) - o - phthalate as solvent, the electrode shows Nerstian range from 1.0×10^(-2)-9.0×10^(-6)mol/L in the pH < 5 . 0 with a slope of 56.2 m V/decade. The detection limit is 4.5×10^(-6)mol/L. The electrode gives fast response, good reproducibility and stability. Direct potentionmetry for samples shows an average recovery of 99.4% and a standard deviation of 1.4% .

关 键 词：离子缔合物 四苯硼酸-氨溴索 离子选择性电极 PVC电极 盐酸氟溴索 

分 类 号：O657.1[理学—分析化学]