Electrochemical detection of dihydromyricetin using a DNA immobilized ethylenediamine/polyglutamic modified electrode
Literature Information
Publication Date
2011-11-23
DOI
10.1039/C1AN15720E
Impact Factor
4.616
Authors
Lina Zou, Ying Xu, Peili Luo, Shusheng Zhang, Baoxian Ye
View Original
Abstract
A novel voltammetric sensor, based on DNA immobilized on the surface of an ethylenediamine/polyglutamic (En/PGA) modified glassy carbon electrode (GCE), was constructed and used for determination of dihydromyricetin (DMY). The electrochemical behaviour of DMY at this sensor was investigated in pH 3.6 NaAc-HAc buffer solutions by cyclic voltammetry (CV) and differential pulse anodic voltammetry (DPV). The oxidation of DMY is an adsorption-controlled irreversible process. The oxidation mechanism was proposed and discussed. It was found that the modified electrode exhibited a linear voltammetric response for DMY in the range of 4.0 × 10−8 mol L−1 to 2 × 10−6 mol L−1, with a detection limit of 2 × 10−8 mol L−1. The method was also applied successfully to detect DMY in an ampelopsis sample with satisfactory results.
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Source Journal
Analyst
CiteScore:
7.8
Self-citation Rate:
5.6%
Articles per Year:
653
Analyst publishes analytical and bioanalytical research that reports premier fundamental discoveries and inventions, and the applications of those discoveries, unconfined by traditional discipline barriers.
Recommended Compounds
5-Amino-1-(2,4-difluorophenyl)-3-methyl-1H-pyrazole-4-carbonitrile
CAS Number:
1020057-92-4
Molecular Formula:
C11H8F2N4
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