State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renming Street 5625, Changchun 130022, PR China.
Anal Chim Acta. 2010 Mar 24;663(2):153-7. doi: 10.1016/j.aca.2010.01.061. Epub 2010 Feb 6.
We have developed a novel nickel nanoparticle-loaded carbon fiber paste (NiCFP) electrode for enzyme-free determination of ethanol. An electrospinning technique was used to prepare the NiCF composite with large amounts of spherical nanoparticles firmly embedded in carbon fibers (CF). In application to electroanalysis of ethanol, the NiCFP electrode exhibited high amperometric response and good operational stability. The calibration curve was linear up to 87.5 mM with a detection limit of 0.25 mM, which is superior to that obtained with other transition metal based electrodes. For detection of ethanol present in liquor samples, the values obtained with the NiCFP electrode were in agreement with the ones declared on the label. The attractive analytical performance and simple preparation method make this novel material promising for the development of effective enzyme-free sensors.
我们开发了一种新型的负载镍纳米粒子的碳纤维糊剂（NiCFP）电极，用于无酶法测定乙醇。采用静电纺丝技术制备了 NiCF 复合材料，其中大量球形纳米粒子牢固地嵌入碳纤维（CF）中。在乙醇的电化学分析中，NiCFP 电极表现出高的安培响应和良好的操作稳定性。校准曲线在 87.5mM 以内呈线性，检测限为 0.25mM，优于其他基于过渡金属的电极。对于检测酒样中的乙醇，NiCFP 电极的检测值与标签上的标注值一致。这种新型材料具有吸引人的分析性能和简单的制备方法，有望开发出有效的无酶传感器。
