Efficient enrichment and analysis of atrazine and its degradation products in Chinese Yam using accelerated solvent extraction and pipette tip solid-phase extraction followed by UPLC–DAD. (1st February 2021)

• Record Type: Journal Article
• Authors: Wu, Xingqiang; Shen, Shigang; Yan, Hongyuan; Yuan, Yanan; Chen, Xi
• Is Part Of: Food chemistry. Volume 337(2021)
• Publication Date: 2021-02-01
• Subjects: Chinese Yam -- Atrazine -- Accelerated solvent extraction -- Pipette tip solid-phase extraction -- Molecularly imprinted polymer; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664
• DOI: 10.1016/j.foodchem.2020.127752
• Languages: English
• ISSNs: 0308-8146

Abstract

Highlights: MIP allowed selective recognition of atrazine and its degradation products. MIP were used in miniaturized SPE equipment to clean-up samples. The proposed ASE-(MIP-PTSPE)-UPLC method can be applied to real samples detection. This novel method was proved to be effective, simple and low cost. Abstract: 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 μg/ 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.