Voltammetric determination of erythromycin in water samples using a boron-doped diamond electrode

被引：10

作者：

Radicova, Monika ^{[1
]}

Behul, Miroslav ^{[2
]}

Vojs, Marian ^{[2
]}

Bodor, Robert ^{[1
]}

Stanova, Andrea Vojs ^{[1
]}

机构：

[1] Comenius Univ, Fac Nat Sci, Dept Analyt Chem, Bratislava 84215 4, Slovakia

[2] Slovak Univ Technol Bratislava, Fac Elect Engn & Informat Technol, Inst Elect & Photon, Bratislava 81219, Slovakia

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2015年 / 252卷 / 11期

关键词：

boron-doped diamond electrode; erythromycin; square-wave voltammetry; water samples; LIQUID-CHROMATOGRAPHY; ELECTROCHEMICAL OXIDATION; HUMAN PLASMA; PHARMACEUTICAL FORMULATIONS; SENSITIVE DETERMINATION; GOLD NANOPARTICLES; BIOLOGICAL SAMPLES; ANTIBIOTICS; PRODUCTS; RESIDUES;

D O I：

10.1002/pssb.201552245

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A new, simple, sensitive, and low-cost voltammetric method using an as-grown boron-doped diamond electrode was developed for the determination of erythromycin in environmental (water) samples. Erythromycin provided an irreversible oxidation peak at a potential of +0.87V versus Ag/AgCl/KCl (3mol/L) electrode in an ammonium acetate buffer (pH 5). Under optimal experimental conditions, square-wave voltammetry was used for the determination of erythromycin. The calibration curves showed good linearity in a concentration range from 6.8 to 68.1 mu mol/L with the coefficient of determination R-2 = 0.9993. The limit of detection of the proposed method was 1.1 mu mol/L. Very good repeatability (n = 7) at three different concentration levels (6.8, 13.6 and 20.4 mu mol/L) was obtained (RSD of 2.4, 1.8, 1.6, respectively). The developed square-wave method was successfully applied to the determination of erythromycin in several different water samples with good recovery (from 89 to 107%). (C) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：2608 / 2613

页数：6

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