Resolution of Synchronous Fluorimetric Spectrum for Carbaryl and Coumaphos and Its Application Study
ZHANG Guo-wen1, PAN Jun-hui2, NI Yong-nian3*
1. The Key Laboratory of Food Science of Ministry of Education, Nanchang University, Nanchang 330047, China 2. Department of Food Science and Engineering, Nanchang University, Nanchang 330047, China 3. Department of Chemistry, Nanchang University, Nanchang 330047, China
Abstract：The synchronous fluorimetric method for the simultaneous determination of carbaryl and coumaphos is described. In the Britton-Robinson buffer at pH 3.0, synchronous scanning with Δλ=60 nm was carried out, and the overlapped fluorimetric spectra were better separated. The two synchronous fluorimetric peaks are located at 280 and 322 nm respectively, and can be used for the determination of these two pesticides. No preliminary separation is needed. The method is simple, rapid and successfully applied to the analysis of food samples. The linear ranges of the calibration curves for carbaryl and coumaphos are 0.016-0.384 μg·mL-1 and 0.016-0.320 μg·mL-1, respectively. The limits of detection are 0.015 μg·mL-1 for carbaryl, and 0.010 μg·mL-1 for coumaphos.
张国文1, 潘军辉2, 倪永年3*. 西维因和蝇毒磷的同步荧光光谱解析及应用研究[J]. 光谱学与光谱分析, 2006, 26(06): 1092-1095.
ZHANG Guo-wen1, PAN Jun-hui2, NI Yong-nian3* . Resolution of Synchronous Fluorimetric Spectrum for Carbaryl and Coumaphos and Its Application Study. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(06): 1092-1095.
