A rapid and sensitive assay for determination of doxycycline using thioglycolic acid-capped cadmium telluride quantum dots

被引：40
|
作者：
Tashkhourian, Javad [1 ]
Absalan, Ghodratollah [1 ]
Jafari, Marzieh [1 ]
Zare, Saber [1 ]
机构：
[1] Shiraz Univ, Coll Sci, Dept Chem, Prof Massoumi Lab, Shiraz 71454, Iran
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2016年 / 152卷
关键词：
Cadmium telluride quantum dots; Doxycycline; Fluorescence detection; Sonochemical synthesis; FLOW-INJECTION ANALYSIS; TETRACYCLINE ANTIBIOTICS; LIQUID-CHROMATOGRAPHY; PHARMACEUTICAL FORMULATIONS; AMBROXOL HYDROCHLORIDE; AMPEROMETRIC DETECTION; EXPERIMENTAL-DESIGN; GOLD NANOPARTICLES; LUMINESCENT PROBES; FLUORESCENCE;
D O I：
10.1016/j.saa.2015.07.063
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
A rapid, simple and inexpensive spectrofluorimetric sensor for determination of doxycycline based on its interaction with thioglycolic acid-capped cadmium telluride quantum dots (TGA/CdTe QDs) has been developed. Under the optimum experimental conditions, the sensor exhibited a fast response time of <10 s. The results revealed that doxycycline could quench the fluorescence of TGA/CdTe QDs via electron transfer from the QDs to doxycycline through a dynamic quenching mechanism. The sensor permitted determination of doxycycline in a concentration range of 1.9 x 10(-6)-6.1 x 10(-5) mol L-1 with a detection limit of 1.1 x 10(-7) mol L-1. The sensor was applied for determination of doxycycline in honey and human serum samples. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：119 / 125
页数：7
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