期刊
FOOD CHEMISTRY
卷 337, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2020.127752
关键词
Chinese Yam; Atrazine; Accelerated solvent extraction; Pipette tip solid-phase extraction; Molecularly imprinted polymer
资金
- National Natural Science Foundation of China [21575033]
- Natural Science Foundation of Hebei Province [B2018201270]
- Natural Science Foundation of Education Department of Hebei Province [ZD2015036]
- Outstanding Doctoral Cultivation Project of Hebei University [YB201703]
An efficient sample preparation technique was developed for simultaneous analysis of atrazine and its degradation products in Chinese Yam. The method showed superior performance in terms of sensitivity, accuracy, and precision, making it expected to be useful in supervised residue analysis.
The Chinese Yam (Dioscorea opposita) is cultivated widely in China. However, there are potential safety risks associated with herbicide residues in Chinese Yam because of its characteristics and unregulated use of pesticides. We developed an efficient sample preparation technique for simultaneous analysis of atrazine and its degradation products in Chinese Yam using accelerated solvent extraction and pipette tip solid-phase extraction followed by UPLC-DAD analysis. Molecularly imprinted polymer (MIP) were used as the adsorbent material. Method performance was evaluated and our results showed the limit of quantification was 1-3 mu g/ kg, with recoveries in the range 79.2-103.8%. When compared with other methods, this method provided superior performance in terms of sensitivity, accuracy, and precision. This method is, therefore, expected to be useful in supervised residue analysis.
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