CAJ | 학술논문

采用滴涂法制备了Nation/碳纳米粒子复合物修饰玻碳电极,该电极对H_2O_2具有良好的电催化氧化性能.还利用滴涂法制备了Nation/碳纳米粒子复合物包裹的葡萄糖酶电化学生物传感器,该生物传感器对葡萄糖有着良好的电催化作用.应用该传感器对葡萄糖进行了检测,检测线性范围为2.0×10~(-6)-6.0×10~(-3) mol/L,检出限为1.6×10~(16) moL/L(S/N=3),实验结果表明该传感器具有良好的稳定性、重现性和抗干扰能力.对小鼠血清样品中的葡萄糖进行检测,结果令人满意.
채용적도법제비료Nation/탄납미입자복합물수식파탄전겁,해전겁대H_2O_2구유량호적전최화양화성능.환이용적도법제비료Nation/탄납미입자복합물포과적포도당매전화학생물전감기,해생물전감기대포도당유착량호적전최화작용.응용해전감기대포도당진행료검측,검측선성범위위2.0×10~(-6)-6.0×10~(-3) mol/L,검출한위1.6×10~(16) moL/L(S/N=3),실험결과표명해전감기구유량호적은정성、중현성화항간우능력.대소서혈청양품중적포도당진행검측,결과령인만의.
The nafion/carbon nanoparticles (CNPs) composite film modified glassy carbon electrode was pre pared by dropwise method, and the electrocatalyst of H_2O_2 at Nafion/CNPs modified electrode was investiga ted.The results show that electrocataytic activitie for detection of H_2O_2 at the modified electrode is very good.The biosensing application of CNPs was demonstrated through fabrication of an electrochemical biosensor.The biosensor was constructed by encapsulating glucose oxidase in the Nafion/CNPs composite film.The biosensor had good electrocatalytic activity toward oxidation of glucose.The glucose biosensor shows a linear range from 2.0 × 10 ~(-6) to 6.0×10~(-3) mol/L with a detection limit of 1.6×10 ~(-6) mol/L.The biosensor shows high stabili ty, good reproducibility and can avoid the commonly coexisted interference.In addition, real rat serum samples were analyzed by this biosensor with satisfactory results.