CAJ | 학술논문

利用静电纺丝技术在铂电极表面制备了氧化锌纤维膜载体,通过在氧化锌纤维表面电沉积磷钨酸,得到氧化锌负载磷钨酸修饰铂电极。扫描电镜显示氧化锌纤维呈网状结构,纤维直径约为300 nm,红外光谱法确认了磷钨酸在纤维表面的附着。研究结果表明,该电极对抗坏血酸响应快速、灵敏度高,在8.8×10-7~3.3×10-4 mol/L浓度范围内,抗坏血酸与修饰电极响应信号呈线性关系,检出限为2.5×10-7 mol/L。本研究为抗坏血酸的快速检测提供了一种新方法。
이용정전방사기술재박전겁표면제비료양화자섬유막재체,통과재양화자섬유표면전침적린오산,득도양화자부재린오산수식박전겁。소묘전경현시양화자섬유정망상결구,섬유직경약위300 nm,홍외광보법학인료린오산재섬유표면적부착。연구결과표명,해전겁대항배혈산향응쾌속、령민도고,재8.8×10-7~3.3×10-4 mol/L농도범위내,항배혈산여수식전겁향응신호정선성관계,검출한위2.5×10-7 mol/L。본연구위항배혈산적쾌속검측제공료일충신방법。
A ZnO nanofibers carrier on the Pt electrode via electrospinning technology was prepared and then the Keggin phosphotungstic acid was deposited on the ZnO/Pt electrode using electrodeposition technology. The scanning electron microscopy showed that the zinc oxide fibers presented net structure and the diameter of its fiber was about 300 nanometers. The fourier transform infrared spectroscopy confirmed that the phosphotungstic acid adhered to the fiber surface. The electrochemical property of the modified electrode showed that it exhibited rapid response, excellent sensitivity and good stability, achieving rapid and accurate determination. The electrode responded linearly to ascorbic acid ( AA) in a concentration range from 8. 8 × 10-7 to 3. 3 × 10-4 mol/L with a low detection limit of 2. 5 × 10-7 mol/L. The method is promising for the development of AA detecting instrument.