MIPdatabase
Authors: Wang WJ, Xu YQ, Liu XQ, Peng L, Huang T, Yan YS, Li CX
Article Title: Efficient fabrication of ratiometric fluorescence imprinting sensors based on organic-inorganic composite materials and highly sensitive detection of oxytetracycline in milk.
Publication date: 2020
Journal: Microchemical Journal
Volume: 157
Article Number: 105053.
DOI: 10.1016/j.microc.2020.105053
Alternative URL: https://www.sciencedirect.com/science/article/pii/S0026265X20306779
Abstract: Ratiometric fluorescence imprinting sensors (GQDs/CdTe@MIPs) were successfully constructed by precipitation polymerization method for the recognition and detection of oxytetracycline (OTC) in milk samples. GQDs/CdTe@MIPs were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), fourier transform infrared (FT-IR), thermal gravity analysis (TGA), UV-visible spectroscopy (UV-vis) and X-ray photoelectron spectroscopy (XPS) techniques. A satisfying linear relationship under 0-80 μM OTC concentration (R2 = 0.99699) was exhibited. High sensitivity was showed with the limit of detection of 3.5 nM and high recovery ranged from 99.93% to 100.20%. In addition, the selectivity of GQDs/CdTe@MIPs to OTC was well comparing with other antibiotics. With the injection of different concentrations of OTC, the fluorescent color change of GQDs/CdTe@MIPs under the 365 nm UV lamp further verified that GQDs/CdTe@MIPs were used successfully for the visual detection to OTC in milk samples
Template and target information: oxytetracycline, OTC
Author keywords: oxytetracycline, molecularly imprinted, QDs, fluorescence, Visual detection
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