【作者】 井伟； 李小晶； 吕水源； 许才明； 陈旻实； 陈锦权；

【Author】 JING Wei~(1,2),LI Xiao-jing~(2*),LV Shui-yuan~2,XU Cai-ming~2,CHEN Min-shi~2,CHEN Jin-quan~(1*) 1 College of Food Science of Fujian Agriculture and Forestry University,Fuzhou 350002 China 2 Fujian Province Entry-Exit Inspection and Quarantine Bureau,Fuzhou 350001,China

【机构】 福建农林大学食品科学学院； 福建出入境检验检疫局技术中心；

【摘要】 CdS纳米棒用Nafion膜固定在玻碳电极,制备CdS/GCE修饰电极并研究电极在PBS缓冲溶液中,与共反应体K₂S₂O₈的电化学发光（ECL）性能。基于三聚氰胺能淬灭CdS-K₂S₂O₈体系电化学发光,实现电化学发光发检测三聚氰胺的新方法。在最优条件下,体系的ECL强度与三聚氰胺浓度在1.0×10^-9mol/L～1.0×10^-7mol/L范围内与成线性关系,检测限达8.0×10^-10mol/L（S/N=3）。更多还原

【Abstract】 CdS was successfully modified on glassy carbon electrode（CdS/GCE） with Nation and the electrochemiluminescence（ECL） behavior of CdS/GCE electrode with coreaction K₂S₂O₈ had been studied.Melamine was found to be able to significantly quench the ECL of CdS/K₂S₂O₈ system,based on which a highly sensitive approach for the detection of melamine was proposed.Conditions were optimized,the logarithmic plot of the inhibited ECL versus the concentration of melamine was linear over the ranges of 1.0×10^-9mol/L～1.0×10^-7 mol/L.The corresponding limit of detection（LOD） was 8.0×10^-10 mol/L for melamine（S/N = 3）.更多还原