Title: Rapid Detection of Thiabendazole Residues in Vegetable Leaves by Surface-enhanced Raman Spectroscopy
Abstract: Surface-enhanced Raman spectroscopy( SERS) was used to rapidly detect the thiabendazole residues in vegetable leaves in this paper. Vegetable leaves were extracted by new method of quick pre-treatment. SERS of different concentration of thiabendazole solutions and thiabendazole solutions with vegetable juice as the matrix were collected by laser Raman spectrometer. The results showed that SERS signals of thiabendazole solutions had a good linear relationship between 0. 1 and 10mg·L-1. The standard curve for thiabendazole with the intensity of the peak 1 009cm-1was plotted,and correlation coefficient was 0. 992 2. Thiabendazole solutions with vegetable juice as the matrix can be detected by SERS in low concentrations of 0. 2mg·L-1. SERS of thiabendazole solutions with vegetable juice as the matrix had obvious Raman characteristic peaks at 990,1 225 and 1 527cm-1when concentration was 0. 2mg·L-1. And the vibrational modes of these characteristic peaks were consistent with those of thiabendazole solutions. It can be regard as the qualitative discriminate basis of thiabendazole pesticide. This investigation provides the method support for rapid detection pesticide residues in vegetables.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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