文献类型：期刊文献

中文题名：中空介孔碳球修饰的丝网印刷碳电极用于尼古丁的电化学检测

英文题名：Electrochemical Detection of Nicotine Using Screen-printed Carbon Electrodes Modified with Hollow Mesoporous Carbon Spheres

作者：赵红莉[1];李小庆[1];施立波[1];刘莉[1];蓝闽波[1];张乾[2]

机构：[1]华东理工大学化学与分子工程学院,上海200237;[2]上海烟草集团有限责任公司,上海200082

年份：2017

卷号：36

期号：8

起止页码：998

中文期刊名：分析测试学报

外文期刊名：Journal of Instrumental Analysis

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD2017_2018】；

基金：上海市科委国际合作项目(16520710800)

语种：中文

中文关键词：中空介孔碳球;丝网印刷碳电极;尼古丁;电化学传感器

外文关键词：hollow mesoporous carbon sphere; screen-printed carbon electrodes; nicotine; electro-chemical sensor

摘要：将一步法合成的中空介孔碳球(HMCS)修饰在丝网印刷碳电极(SPCE)上,得到了用于尼古丁电化学检测的新型电极(HMCS/SPCE)。通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、粉末X射线衍射(XRD)、X射线光电子能谱(XPS)以及拉曼光谱等方法对HMCS及修饰电极HMCS/SPCE进行表征。由于HMCS具有较大的电化学活性面积和良好的导电性,修饰电极HMCS/SPCE对尼古丁表现出良好的电催化活性。在优化实验条件下,电极HMCS/SPCE对尼古丁的检测线性范围为0~500μmol/L,灵敏度为0.850 m A/(cm^2·mmol·L^(-1)),检出限为0.058μmol/L。制备的传感器具有重复性好、稳定性高等特点,可用于实际烟草样品中尼古丁的检测。
A novel modified electrode（HMCS/SPCE） was developed to electrochemically detect nico- tine based on screen-printed carbon electrodes （SPCE） modified with hollow mesoporous carbon spheres（HMCS） synthesized through one step process. HMCS and HMCS/SPCE were characterized by scanning electron microscopy（SEM）, transmission electron microscopy（TEM）, X-ray diffraction （XRD）, X-ray photoelectron spectroscopy（XPS） and Raman spectrometry. Due to the superior e- lectrical conductivity and high electrochemical active sites of HMCS, nicotine was significantly elec- tro-oxidized on the interface of HMCS/SPCE. The proposed sensor provided linear responses upon nic- otine in the concentration range of 0 -500μmol/L. The sensitivity was 0. 850 mA/（cm2 ·mmol · L）, and the limit of detection was calculated to be 0. 058μmol/L. With a favourable reproducibility and a good stability, the sensor could be used to detect nicotine in cigarette samples accurately.