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  • Title: Determination of phenamacril residues in flour and rice based on Z-Sep+ using ultra-high-performance liquid chromatography-tandem mass spectrometry.
    Author: Sun M, Yu L, Tong Z, Dong X, Chu Y, Wang M, Gao T, Duan J.
    Journal: Biomed Chromatogr; 2019 Dec; 33(12):e4688. PubMed ID: 31445506.
    Abstract:
    Phenamacril is a new broad-spectrum fungicide that is commonly used for the control of fungal diseases in wheat and rice. In this study, ultra-high-performance liquid chromatography-tandem mass spectrometry was used to establish a method for analyzing the residual phenamacril in flour and rice based on the improved QuEChERS (quick, easy, cheap, effective, rugged and safe) method using Z-Sep+ as the adsorbent in the pre-treatment process. The average recovery of phenamacril in flour and rice was 82.2-96.0%, the relative standard deviation was 2.1-5.6% and the limit of quantification was 0.5 μg/kg. The accuracy and sensitivity of this method meet the requirements for residue analysis. The method was applied to commercially available flour and rice samples, and the detected concentrations of phenamacril were 0.005-0.033 mg/kg. This method provides technical support for the safety evaluation of phenamacril.
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