酞菁钯-PVC膜硫氰酸根离子选择性电极的研制及应用  

PREPARATION AND APPLICATION OF PALLADIUM-PHTHALOCYANINE-PVC MEMBRANE-SCN^- ANION SELECTIVE ELECTRODE

作　　者：李玉瑛[1] 李铮[1] 李小丽[1] 廖远熹[1] 童春义[1] 丁利[1] 黄杉生[1] 

机构地区：[1]湖南大学化学生物传感与计量学国家重点实验室

出　　处：《理化检验（化学分册）》2004年第9期531-532,535,共3页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：研制了酞菁钯 PVC膜硫氰酸根离子选择性电极。在B.R缓冲体系(pH2.5)中,电极对SCN-离子响应的线性范围为1.0×10-5～0.1mol·L-1,检出限为7.28×10-6mol·L-1,斜率为56±1mV,电极具有良好的选择性和稳定性。用于印染厂废水中SCN-的测定,结果满意。A palladium phthalocyanine-PVC membrane electrode for thiocyanate ion was prepared. In a B.R. buffer solution of pH 2.5, the proposed electrode responded to thiocyanate ion in a linear range between 1.0×10^(-5)mol·L^(-1)～0.1mol·L^(-1) with a detection limit of 7.28×10^(-6)mol·L^(-1) and the slope is 56±1mV. The electrode showed good selectivity and stability. The electrode was applied to the determination of thiocyanate ion in waste water with satisfactory results.

关 键 词：酞菁钯 PVC膜 硫氰酸根离子 选择性电极 染织废水 含量测定 

分 类 号：X788.03[环境科学与工程—环境工程]