Gold Nanoparticles/Biphenol-biphenoquinone for Ultra-trace Voltammetric Determination of Captopril

被引：11
|
作者：
Shahbakhsh, M. [1 ]
Hashemzaei, Z. [1 ]
Narouie, S. [1 ]
Shahbakhsh, Y. [1 ]
Noroozifar, M. [2 ]
机构：
[1] Univ Sistan & Baluchestan, Dept Chem, Analyt Res Lab, POB 98135-674, Zahedan, Iran
[2] Univ Toronto Scarborough, Dept Phys & Environm Sci, 1265 Mil Trail, Toronto, ON M1C 1A4, Canada
来源：
ELECTROANALYSIS | 2021年 / 33卷 / 03期
关键词：
Electrochemical determination of captopril; Electron transfer mediator; Gold nanoparticles; biphenol-biphenoquinone; GLASSY-CARBON ELECTRODE; ELECTROCHEMICAL SENSOR; OXIDE NANOPARTICLES; CATALYTIC-ACTIVITY; AU NANOPARTICLES; PASTE ELECTRODE; 4,4'-BIPHENOL; REDUCTION; FERROCENE; OXIDATION;
D O I：
10.1002/elan.202060352
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
This study aims to synthesize gold nanoparticles/biphenol-biphenoquinone (AuNPs-BOH-BQ) and to study its application as a novel heterogeneous electron transfer mediator to modify carbon paste electrode (CPE/Au NPs-BOH-BQ) for ultra-trace determination of captopril (CP). Characterization results show well dispersed Au NPs with sizes in the range of 8.0-10.5 nm. Under optimized conditions, the calibration plot was linear from 1 to 5x10(4) nM (two segments, 1-150 nM and 0.15-50.0 mu M) and the detection limit was calculated to be 0.4 nM (S/N=3). Finally, the suggested sensor showed stable and reliable responses to CP in CP pharmaceutical tablet and urine samples.
引用
收藏
页码：713 / 722
页数：10
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