二氧化钛溶胶凝胶膜修饰的维生素B_6电极  

A vitamin B_6 electrode modified with titanium dioxide sol-gel membrane

作　　者：黄西朝[1] 祝保林[1] 

机构地区：[1]渭南师范学院传感器研究所,渭南714000

出　　处：《分析试验室》2012年第7期83-86,共4页Chinese Journal of Analysis Laboratory

基　　金：陕西省军民融合基金项目(11JMR05);陕西省军民融合基金项目(11JMR02);陕西省自然科学专项基金项目(2010K06-07);陕西省教育厅专项基金项目(2010JK546);渭南师范学院大学生创新基金项目(11XK074)资助

摘　　要：制备了一种以硅钨酸为定域体试剂,用溶胶-凝胶技术制作的新型维生素B6电极,详尽讨论了电极性能的影响因素。电极斜率为58.0 mV/dec,线性范围为1.0×10-2～4.0×10-6mol/L,检测限为2.5×10-6mol/L。该电极易于批量生产和微型化,用于样品分析,结果令人满意。A novel ion selective electrode for determination of vitamin B6 was prepared based on the sol-gel technique with silicotungstic acid as an active material.The effect of factor on the performance of electrode was studied.The linear range was 1.0×10-2~4.0×10-6mol/L with a detection limit of 2.5×10-6mol/L and a slope of 58.0 mV/dec.The electrode is characterized by simplicity of preparation,lower cost,easy batch production and miniaturization,and applicability in severe conditions.The electrode was applied to the analysis of real samples with satisfactory results.

关 键 词：离子选择性电极 硅钨酸 维生素B6 溶胶-凝胶 

分 类 号：O657.1[理学—分析化学]