文献类型：期刊文献

英文题名：Rapid determination of trace thiabendazole in apple juice utilizing dispersive liquid-liquid microextraction combined with fluorescence spectrophotometry

作者：Li, Wei;Wang, Yuning;Huang, Limin;Wu, Ting;Hu, Huilian;Du, Yiping[1]

机构：[1]E China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Res Ctr Anal & Test, Shanghai 200237, Peoples R China

年份：2015

卷号：30

期号：6

起止页码：872

外文期刊名：LUMINESCENCE

收录：;EI(收录号：20231713992923);WOS:【SCI-EXPANDED(收录号:WOS:000364639900026)】；

基金：This work was supported by the National Natural Science Foundation of China (21205041) and Science and Technology Commission of Shanghai Municipality (13142201200).

语种：英文

外文关键词：dispersive liquid-liquid microextraction (DLLME); fluorescence spectrophotometry; thiabendazole; quantitative analysis; rapid determination

摘要：Food safety has become a large concern and prompts an urgent need for the development of rapid, simple and sensitive analytical methods that can monitor pesticide residues in foods. This study aimed to provide a method for quantitative determination of trace thiabendazole in apple juice. Due to its high sensitivity and selectivity, fluorescence spectrophotometry was utilized as a front end to dispersive liquid-liquid microextraction (DLLME). The experimental parameters that influenced the extraction were systematically investigated. Under optimum conditions, the whole procedure, including DLLME and analysis of one sample, was carried out within 5 min, and linearity was found in the 5-50 mu g/L range with a correlation coefficient (r) of 0.9987. The limit of detection value was 2.2 mu g/L. Good reproducibility was achieved based with a less than 4.5% relative standard deviation (RSD) for five replicates at different sample concentrations. This method was shown to be suitable for rapid and sensitive quantification of thiabendazole in apple juice. Copyright (C) 2015 John Wiley & Sons, Ltd.