期刊
MICROCHIMICA ACTA
卷 184, 期 1, 页码 127-135出版社
SPRINGER WIEN
DOI: 10.1007/s00604-016-1982-5
关键词
Antibiotic; Differential pulse voltammetry; Linear sweep voltammetry; Milk samples; Nanoparticles
资金
- National Natural Science Foundation of China [21405035, 21475032]
- Natural Science Fund for Creative Research Groups of Hubei Province of China [2014CFA015]
- Open Project Program of State Key Laboratory of Chemo/Biosensing and Chemometrics [Z2015021]
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology [KL2013M09]
A strategy was developed for the voltammetric determination of the antibiotic drug levofloxacin (LV) based on a glassy carbon electrode modified with a composite consisting of poly(o-aminophenol) and graphene quantum dots (PoAP/GQD) that was fabricated by electropolymerization. The PoAP/GQD composite provides a large surface area and sensing interface and strongly promotes the oxidation current of LV. Under optimal conditions, the modified GCE displays an oxidation peak current (best measured at a working voltage of 1.05 V vs. SCE) that is linearly related to the levofloxacin concentration in the range from 0.05 to 100 mu M, and the detection limit is 10 nM (at an S/N of 3). The method was applied to the determination of levofloxacin in spiked milk samples where is gave recoveries between 96.0 and 101.0 %.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据