涂丝型PVC膜盐酸莱克多巴胺选择电极的研制与应用  

Preparation and application of coated wire polyvinyl chloride membrane ractopamine selective electrode

作　　者：高闻[1] 李东辉[1] 

机构地区：[1]辽宁医学院药学院,辽宁锦州121000

出　　处：《化学研究与应用》2012年第11期1745-1747,共3页Chemical Research and Application

基　　金：辽宁省自然科学基金项目(20102137)资助

摘　　要：本文报道了以盐酸莱克多巴胺与四苯硼钠形成的缔合物为电活性物的新型聚氯乙烯(PVC)膜盐酸莱克多巴胺涂丝选择电极,电极的线性响应范围为1.0×10-6～1.0×10-2mol/L,极差电位为46mV/pC,检测下限为7.9×10-7mol/L。该电极响应迅速,重现性好,用此电极以标准曲线法对猪尿样中盐酸莱克多巴胺进行了测定,结果与高效液相色谱法相符。A new coated wire polyvinyl chloride membrane-tramadol selective electrode based on ractopamine and sodium tetraphe- nylborate association complex was first reported. The electrode showed Nernst response for ractopamine with a slope of 46mV/pC in the concentration range of 1.0×10^-6-1.0×10^-2mol/L, The detection limit is 7.9×10^-7mol/L. The electrode has fast response and good reproducibility. The electrode has been used for the determination of ractopamine in the pig urine sample by the standard curve method. The results are consistent with the results obtained by HPLC method.

关 键 词：盐酸莱克多巴胺 离子选择电极 涂丝 

分 类 号：O657.1[理学—分析化学]