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《Chemical Research》 2008-03
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Preparation of Cu~(2+) Selective Electrode by Silica Matrix Molecular Imprinting Technology

LIU Ya-qiang,LIU Yan,HUANG Xi-chao (Institute of Chemical Sensors,Weinan Teachers' College,Weinan 714000,Shaanxi,China)  
By using 3-(2-aminoethylamino)propyltrimethoxysilane as functional molecule,and copper ion as template,copper ion selective electrode is prepared.The process includes the combination of two technologies of sol-gel and molecular imprinting.The mechanism of responding of the electrode is also discussed.Its linear responding scope is 5.00×10-2~3.98×10-6 mol · L-1,with the slope of 31.5 mV/pC to copper ion,and the detect limiting is 1.00×10-6 mol · L-1.Besides,the electrode shows better selectivity,reproducibility and stability.
【Fund】: 陕西省教育厅专项资助项目(07JK240);; 渭南师范学院专项资助项目(07XKZ033)
【CateGory Index】: O657.15
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