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Determination of phenamacril residues in flour and rice based on Z‐Sep+ using ultra‐high‐performance liquid chromatography–tandem mass spectrometry
Author(s) -
Sun MingNa,
Yu Lu,
Tong Zhou,
Dong Xu,
Chu Yue,
Wang Mei,
Gao TongChun,
Duan JinSheng
Publication year - 2019
Publication title -
biomedical chromatography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 65
eISSN - 1099-0801
pISSN - 0269-3879
DOI - 10.1002/bmc.4688
Subject(s) - quechers , chemistry , chromatography , tandem mass spectrometry , residue (chemistry) , detection limit , mass spectrometry , maximum residue limit , residual , relative standard deviation , liquid chromatography–mass spectrometry , tandem , pesticide residue , pesticide , mathematics , agronomy , biochemistry , algorithm , biology , materials science , composite material
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 ( qu ick, e asy, ch eap, e ffective, r ugged and s afe) 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.