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Reference type: Journal
Authors: Ge SG, Lu JJ, Ge L, Yan M, Yu JH
Article Title: Development of a novel deltamethrin sensor based on molecularly imprinted silica nanospheres embedded CdTe quantum dots.
Publication date: 2011
Journal: Spectrochimica Acta Part A-Molecular and Biomolecular Spctroscopy
Volume: 79
Issue: (5)
Page numbers: 1704-1709.
DOI: 10.1016/j.saa.2011.05.040
Alternative URL: http://www.sciencedirect.com/science/article/pii/S1386142511003933

Abstract: A novel procedure for the determination of deltmethrin (DM) is reported. The water-soluble CdTe quantum dots (QDs) and highly fluorescent silica molecularly imprinted nanospheres embedded CdTe QDs (CdTe-SiO2-MIPs) were prepared and characterized by fluorescence spectroscopy, UV-vis spectroscopy, TEM and IR. The fluorescence nanosensor based CdTe-SiO2-MIPs is developed. The possible quenching mechanism is discussed by DM. Under optimal conditions, the relative fluorescence intensity of CdTe-SiO2-MIPs decreased with increasing DM by a Stern-Volmer type equation in the concentration range of 0.5-35.0 μg mL-1, the corresponding detection limit is 0.16 μg mL-1. The developed sensor based on CdTe-SiO2-MIPs was applied to determine DM in fruit and vegetable samples
Template and target information: deltmethrin, DM
Author keywords: CdTe Quantum dots, Deltamethrin, Molecularly imprinted nanosphere, Fluorescence sensor


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