三维微阵列微纳电化学传感器制备与铅离子高灵敏检测  

Preparation of three-dimensional microarray micro-nano electrochemical sensor and high sensitivity detection of lead

作　　者：胡湘宜 郭慧[1] 齐同 贾春平[1] 金庆辉[1,3] 赵建龙 HU Xiang-yi;GUO Hui;QI Tong;JIA Chun-ping;JIN Qing-hui;ZHAO Jian-long(State Key Laboratory of Transducer Technology,Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Science,Shanghai 200050;University of Chinese Academy of Sciences,Beijing 100049;Faculty of Electrical Engineering and Computer Science,Ningbo University,Ningbo 315211)

机构地区：[1]中国科学院上海微系统与信息技术研究所传感技术联合国家重点实验室,上海200050 [2]中国科学院大学,北京100049 [3]宁波大学信息科学与工程学院,宁波315211

出　　处：《分析试验室》2019年第10期1147-1151,共5页Chinese Journal of Analysis Laboratory

基　　金：国家重点研发计划项目(2017YFA0205303);国家自然科学基金(61871243,61501441,61671284);上海市科委(17511104402,18DZ1204102,18391901200);浙江公益基金(LGF18F010004)资助

摘　　要：采用微纳制造技术制作出了一种具有三维微柱阵列工作电极的微纳电化学传感器,该传感器包括三维金(Au)微柱阵列工作电极、片上参比电极、片上对电极和PDMS检测池。通过实验检测条件优化后,采用差分脉冲溶出伏安法检测重金属铅离子,微传感器的灵敏度达到0.0428μA/(μg/L)、检测下限达到0.2μg/L,在1~110μg/L的浓度范围内具有良好线性关系(R2=0.994)和重复性(RSD为1.4%)。该微纳传感器用于自来水和河水样品中痕量金属铅离子分析,获得了令人满意的结果。A micro-nano electrochemical sensor with three-dimensional micropillars array working electrode was successfully fabricated by micro-nano manufacturing technology.The sensor consisted of three-dimensional gold(Au)microarray working electrode with a reference electrode plate and a PDMS detection cell.After the experimental conditions were optimized,differential pulse stripping voltammetry(DPSV)was used to detect heavy metal lead ions.The microsensor had a high sensitivity of 0.0428μA/(μg/L)and a low detection limit of 0.2μg/L and has good linearity(R2=0.994)in the concentration range of 1-110μg/L with excellent repeatability(RSD:1.4%).Satisfactory results had been obtained for the determination of Pb(Ⅱ)ions in tap water and river water samples.

关 键 词：三维微柱阵列 微纳传感器 铅离子 自来水 河水 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]