Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Science & Technology Vision》 2016-10
Add to Favorite Get Latest Update

Self-assembled L-cysteine Modified Gold Electrode for Nitro-phenol Detection

LIAN Huan;ZHANG Cui-zhong;ZHANG Zhen-fa;PENG Jin-yun;Guangxi Normal University for Nationalities, Key Laboratory of Chemical for Gui Southwest Special Plant Resources, School of Chemistry and Biology;  
A kind of electrochemical sensor(L-Cys / Au) has been constructed by the formation of self-assembly of monolayer of L-cysteine on gold electrode. Here, we studied the electrochemical behavior of nitro phenol on the modified electrode by the methods of cyclic voltammetry(CV) and differential pulse(DPV). The L-cysteine modified gold electrode showed higher voltammetric response, when compared to the gold electrode. It is attributed to the hydrogen bonding between L-cysteine and nitro-phenol. The nitro-phenol is vulnerably absorbed to the monolayer of L-cysteine.The result show that the assembled L-cysteine films voltammetric response is liner over the 0~12.5μmol·L-1ranges with the detectin limit of 0.0295μmol·L-1(D=3N/S). The relative standard deviation(RSD) of less than 5% and the recovery of water sample is between 95.51% and 102.72%.
【Fund】: 国家自然科学基金资助项目(NO.21465004);; 校级项目(编号:2012XYYB003)
【CateGory Index】: O657.1
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved