分析化学
分析化學
분석화학
Chinese Journal of Analytical Chemistry
2015年
11期
1716-1721
,共6页
周必武%张朝晖%蒋映权
週必武%張朝暉%蔣映權
주필무%장조휘%장영권
印迹电化学传感器%对特辛基苯酚%石墨烯%纳米钴
印跡電化學傳感器%對特辛基苯酚%石墨烯%納米鈷
인적전화학전감기%대특신기분분%석묵희%납미고
Imprinted electrochemical sensor%p-Tert-octylphenol%Graphene%Cobalt nanoparticles
以对特辛基苯酚为模板分子,吡咯为单体,采用电聚合法在一步电化学还原石墨烯/纳米钴修饰碳电极表面制备出高灵敏度和高选择性地检测对可特辛基苯酚的印迹电化学传感器。采用循环伏安法和差分脉冲伏安法等方法,对此印迹电极的电化学性能表征。结果表明,此印迹电化学传感器的响应电流与对特辛基苯酚浓度的负对数在1.0′10-13~1.0′10-7mol/L范围内呈良好的线性关系(R2=0.987),检出限为3.7×10-14 mol/L (S/N=3)。此印迹电化学传感器成功用于检测雨水、湖水、饮料等样品中的对特辛基苯酚,回收率达到92.4%~102.0%。
以對特辛基苯酚為模闆分子,吡咯為單體,採用電聚閤法在一步電化學還原石墨烯/納米鈷脩飾碳電極錶麵製備齣高靈敏度和高選擇性地檢測對可特辛基苯酚的印跡電化學傳感器。採用循環伏安法和差分脈遲伏安法等方法,對此印跡電極的電化學性能錶徵。結果錶明,此印跡電化學傳感器的響應電流與對特辛基苯酚濃度的負對數在1.0′10-13~1.0′10-7mol/L範圍內呈良好的線性關繫(R2=0.987),檢齣限為3.7×10-14 mol/L (S/N=3)。此印跡電化學傳感器成功用于檢測雨水、湖水、飲料等樣品中的對特辛基苯酚,迴收率達到92.4%~102.0%。
이대특신기분분위모판분자,필각위단체,채용전취합법재일보전화학환원석묵희/납미고수식탄전겁표면제비출고령민도화고선택성지검측대가특신기분분적인적전화학전감기。채용순배복안법화차분맥충복안법등방법,대차인적전겁적전화학성능표정。결과표명,차인적전화학전감기적향응전류여대특신기분분농도적부대수재1.0′10-13~1.0′10-7mol/L범위내정량호적선성관계(R2=0.987),검출한위3.7×10-14 mol/L (S/N=3)。차인적전화학전감기성공용우검측우수、호수、음료등양품중적대특신기분분,회수솔체도92.4%~102.0%。
A high sensitive and selective imprinted electrochemical sensor based on cobalt nanoparticles/gra-phene modified carbon electrode was prepared by electropolymerization technqiue with p-tert-octylphenol as the template and pyrrole as the functional monomer. The electrochemical behaviors of the imprinted sensor were evaluated with cyclic voltammetry and differential pulse voltammetry. The response currents of the imprinted electrochemical sensor exhibited a linear relationship toward the negative logarithm of p-tert-octylphenol concentrations ranged from 1. 0í10-13 mol/L to 1. 0í10-7 mol/L (R2=0. 994) with the detection limit of 3 . 7í10-14 mol/L ( S/N=3 ) . The imprinted electrochemical sensor was respectively applied to the determina-tion of p-tert-octylphenol in rain water, lake water and drink with the recoveries of 92. 4%-102. 0%.