采用共混法制备出了碳纳米管/氧化石墨烯负载四氨基钴酞菁,修饰玻碳电极(CNT/GO/CoTAPc/GCE),研究亚硝酸盐在该电极上的电化学行为。结果显示:CNT/GO/CoTAPc/GC电极对亚硝酸盐的氧化有良好的电化学活性;在0.1M,pH=7的磷酸盐缓冲溶液中,电流计时法检测亚硝酸盐的线性范围为8.4×10-8~1×10-3 mol/L,灵敏度为15.98μA/mM,检出限为8.4×10-8 mol/L(3sb)。
CoTAPc loaded with carbon nanotube/graphene oxide was prepared by blending method to embellish glassy carbon electrode(CNT/GO/CoTAPc/GCE).Electrochemical behavior of nitrite on the electrode was studied. The results show that CNT/GO/CoTAPc/GC electrode exhibits excellent electrochemical catalytic property for nitrite.In 0.1MpH 7.0phosphate buffered solution,linear range of nitrite detected with current chronometry is 8.4×10-8~1×10-3 mol/L;the sensitivity is 15.98μA/mM;the detection limit is 8.4×10-8 mol/L(3sb).