Selective response of dopamine in the presence of ascorbic acid on L-cysteine self-assembled gold electrode.
A L-cysteine (L-Cys) self-assembled modified gold electrode was used to detect dopamine (DA) by chronoamperometric method (CE) in the presence of ascorbic acid (AA). The defective limit is 2.0 x 10(-8) mol L(-1) (S/N=3). The proposed method was applied to detect DA in the samples with satisfied result.
Hu
Guangzhi
G
School of Chemistry and Materials Science, Anhui Key Laboratory of Functional Molecular Solids, Anhui Normal University,Wuhu 241000, PR China.
Liu
Yunchun
Y
Zhao
Jun
J
Cui
Shiqiang
S
Yang
Zhousheng
Z
Zhang
Yuzhong
Y
D000327:Adsorption; D001205:Ascorbic Acid / Q000737:chemistry*; D015374:Biosensing Techniques / Q000295:instrumentation* / Q000379:methods; D020099:Coated Materials, Biocompatible / Q000737:chemistry; D003545:Cysteine / Q000737:chemistry*; D004298:Dopamine / Q000032:analysis*; D004563:Electrochemistry / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006046:Gold / Q000737:chemistry*; D008839:Microelectrodes; D011485:Protein Binding
D020099:Coated Materials, Biocompatible; D006046:Gold; D003545:Cysteine; D001205:Ascorbic Acid; D004298:Dopamine