广东石油化工学院学报
廣東石油化工學院學報
엄동석유화공학원학보
JOURNAL OF MAOMING COLLEGE
2013年
6期
16-19
,共4页
MWCNT-DHP膜修饰电极%涕必灵%电化学分析%微分脉冲伏安法
MWCNT-DHP膜脩飾電極%涕必靈%電化學分析%微分脈遲伏安法
MWCNT-DHP막수식전겁%체필령%전화학분석%미분맥충복안법
the multi-wall carbon nanotubes/Dihexadecylphate (MWCNT/DHP) modified electrode%Thiabendazole%electrochemical anal-ysis%Differential Pulse Voltammetry
在pH=2.0的B-R (Britton-Robinson )的缓冲溶液中,对制备的多壁碳纳米管/双十六烷基磷酸(MWCNT -DHP )膜修饰电极进行了循环伏安法(CV )表征;分别研究了涕必灵(TBZ )在裸玻碳电极(GCE )和MWCNT -DHP膜修饰电极上的电化学行为,采用微分脉冲伏安法(DPV ),以MWCNT-DHP膜修饰电极为工作电极,建立了一个简单、快速、灵敏的涕必灵电化学分析检测体系;并结合固相萃取技术,测定了环境水中涕必灵含量,检测限达到2.0×10-8 mol·L-1,平均回收率为97.28%~99.40%,RSD为1.3%~2.8%( n=6)。
在pH=2.0的B-R (Britton-Robinson )的緩遲溶液中,對製備的多壁碳納米管/雙十六烷基燐痠(MWCNT -DHP )膜脩飾電極進行瞭循環伏安法(CV )錶徵;分彆研究瞭涕必靈(TBZ )在裸玻碳電極(GCE )和MWCNT -DHP膜脩飾電極上的電化學行為,採用微分脈遲伏安法(DPV ),以MWCNT-DHP膜脩飾電極為工作電極,建立瞭一箇簡單、快速、靈敏的涕必靈電化學分析檢測體繫;併結閤固相萃取技術,測定瞭環境水中涕必靈含量,檢測限達到2.0×10-8 mol·L-1,平均迴收率為97.28%~99.40%,RSD為1.3%~2.8%( n=6)。
재pH=2.0적B-R (Britton-Robinson )적완충용액중,대제비적다벽탄납미관/쌍십륙완기린산(MWCNT -DHP )막수식전겁진행료순배복안법(CV )표정;분별연구료체필령(TBZ )재라파탄전겁(GCE )화MWCNT -DHP막수식전겁상적전화학행위,채용미분맥충복안법(DPV ),이MWCNT-DHP막수식전겁위공작전겁,건립료일개간단、쾌속、령민적체필령전화학분석검측체계;병결합고상췌취기술,측정료배경수중체필령함량,검측한체도2.0×10-8 mol·L-1,평균회수솔위97.28%~99.40%,RSD위1.3%~2.8%( n=6)。
In the B-R (Britton-Robinson) buffer solution of pH 2 .0 ,the Cyclic Voltammetry (CV) impedance technique was used to study (MWCNT/DHP) modified electrode .The electro- chemical behavior of thiabendazole (TBZ) was investigated at GCE and MWCNT/DHP modified electrodes respectively .And it showed that TBZ had weak electrical activity and high over -potential .With DPV technique , a kind of electrochemical analysis method which is simple ,rapid and sensitive was developed for determination of TBZ .The detection limit was 2 .0 × 10-8 mol/L .Combined with the solid phase extraction (SPE) technique ,this method was applied to detect TBZ in the environ-mental water sample .And its recovery was in the range of 97 .28% ~99 .40% , RSD 1 .3~2 .8% ( n=6) .