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

页码：713 / 722

页数：10

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