CAJ | 학술논문

制备了石墨烯（ GO）与碳纳米管（ MWNT）复合材料修饰玻碳电极，在浓度为0.1 mol／L、 pH为5.5的磷酸缓冲溶液（PBS）中，探讨了抗坏血酸（AA）和亚硝酸根（NO－2）在石墨烯与碳纳米管复合材（GO－MWCNTs）料修饰玻碳电极上的电化学行为。结果表明，抗坏血酸和亚硝酸根在该修饰电极上氧化电流可得到明显增强。利用计时电流法测定抗坏血酸与亚硝酸根，抗坏血酸和亚硝酸根氧化电流呈线性关系的浓度范围分别为3.00×10－6～4.06×10－3 mol／L 和7.44×10－5～3.28×10－3 mol／L。
제비료석묵희（ GO）여탄납미관（ MWNT）복합재료수식파탄전겁，재농도위0.1 mol／L、 pH위5.5적린산완충용액（PBS）중，탐토료항배혈산（AA）화아초산근（NO－2）재석묵희여탄납미관복합재（GO－MWCNTs）료수식파탄전겁상적전화학행위。결과표명，항배혈산화아초산근재해수식전겁상양화전류가득도명현증강。이용계시전류법측정항배혈산여아초산근，항배혈산화아초산근양화전류정선성관계적농도범위분별위3.00×10－6～4.06×10－3 mol／L 화7.44×10－5～3.28×10－3 mol／L。
The preparation of a glassy carbon electrode modified graphene and carbon nanotubes composites, when the concentration was 0.1 mol/L, pH=4, the ascorbic acid and nitrite in graphene and carbon nanotubes composite materials modified glassy carbon electrode and its electrochemical behavior were discussed.The results showed that ascorbic acid and nitrite in this modified electrode could be obviously enhanced oxidation current.The determination of ascorbic acid and nitrite chronoamperometry, ascorbic acid and nitrite oxidation current was linear over the concentration range of 3.00 ×10-6 ~4.06 ×10-3 mol/L and 7.44 ×10-5 ~3.28 ×10-3 mol/L, respectively.