溶胶凝胶基质修饰的硫酸根离子电极的研制与应用  

Development and Applications of Sulfate Radicel Ion with Sol-gel Ncatrix

作　　者：黄西朝[1] 李吉锋[1] 

机构地区：[1]渭南师范学院化学与生命科学学院,渭南714000

出　　处：《科学技术与工程》2013年第27期8093-8094,8105,共3页Science Technology and Engineering

基　　金：陕西省军民融合研究基金(12JMR12)资助

摘　　要：用溶胶-凝胶法制备一种以溶胶凝胶为载体的硫酸离子选择性电极。该电极有良好的能斯特响应,电极的响应范围为1.0×10-2mol/L^9.0×10-5mol/L,斜率为33.0 mV/dec(dec全称为decade,dec表示为"10"),检测下限为7.2×19-5mol/L。电极响应快,体积小,稳定性和重现性好。电极用作回收率测定,其结果令人满意。The sol-gel technique has a great future for immobilization. The sol-gel as a cartier for sulfate radicel ion selective electrode is prepared. The electrode showed Nernst response for sulsate radicel ion in the linear rage of 1.0×10-2mol/L～9.0×10-5mol/L with a slope of 33.0 mV/dec. The detection limit is 7.2 × 10 -5 mol/L. The elec- trode has the advantages of fast response, small size, good stability and reproducibility. The electrode was used to determine the recovery. The results are satisfactory.

关 键 词：溶胶凝胶 离子选择性电极 硫酸根 硫酸钡 

分 类 号：O648.17[理学—物理化学]