Fluorescent Sensor and Application in Determination of Carbaryl Residues

Ji Cheng Xu; Xin Shan Rong; Ting Tian; Feng Xian Qiu

doi:10.4028/www.scientific.net/AMR.955-959.1220

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 955-959Fluorescent Sensor and Application in...

Fluorescent Sensor and Application in Determination of Carbaryl Residues

Abstract:

The inclusion complex formation between fluorescent sensor 3, 3’-benzidine/β-cyclodextrin derivative (BDCD) and pesticide carbaryl was studied and characterized by TEM, XRD and fluorescence spectroscopy. The stability constant and the stoichiometry of complex were determined. Based on the enhancement of the fluorescence intensity of carbaryl produced through complex formation, a new sensitive method for the determination of carbaryl was established. The linear relationship between the fluorescence intensity and carbaryl concentration was obtained in the range of 0.60-3.00 μmol/L with a correlation coefficient of 0.9946. The detection limit was 5.12 nmol/L. This method has been successfully applied to the determination of carbaryl pesticide residue in water, fruit and vegetable samples with satisfactory results, recoveries in the range of 94.12 % to 105.88 % were obtained. The method is rapid, simple, direct, economical, sensitive and useful for carbaryl analysis.

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Periodical:

Advanced Materials Research (Volumes 955-959)

Pages:

1220-1223

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.955-959.1220

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Online since:

June 2014

Authors:

Ji Cheng Xu, Xin Shan Rong, Ting Tian, Feng Xian Qiu*

Keywords:

Carbaryl, Fluorescence Spectroscopy, Inclusion Complex, Pesticide Residue

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