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Enantioselective separation and simultaneous determination of fenarimol and nuarimol in fruits, vegetables, and soil by liquid chromatography-tandem mass spectrometry

文献类型： 外文期刊

作者： Zhang, Hu 1 ; Wang, Xinquan 1 ; Zhuang, Shulin; Qian, Mingrong 1 ; Jiang, Kezhi; Wang, Xiangyun 1 ; Xu, Hao 1 ; Qi, 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Qual & Stand Agroprod, State Key Lab Breeding Base Zhejiang Sustainable, MOA Key Lab Pesticide Residue Detect, Hangzhou 310021, Zhejiang, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Qual & Stand Agroprod, State Key Lab Breeding Base Zhejiang Sustainable, MOA Key

关键词： Absolute configuration;Chiral analysis;Fenarimol;High-performance liquid chromatography-tandem mass spectrometry;Nuarimol

期刊名称：ANALYTICAL AND BIOANALYTICAL CHEMISTRY （ 影响因子：4.142； 五年影响因子：3.863 ）

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收录情况： SCI

摘要： A method for simultaneous enantioselective determination of fenarimol and nuarimol in apple, grape, cucumber, tomato, and soil was developed using liquid chromatography-tandem mass spectrometry. The enantioseparation results of the two fungicides through three different cellulose-based chiral columns are discussed. The influence of column temperature on the resolution of the enantiomers of the two fungicides was examined. Complete enantioseparation of the two fungicides' enantiomers was obtained on a cellulose tris(4- methylbenzoate) column (Lux Cellulose-3) at 25 °C using methanol and 0.1 % formic acid solution (80:20, v/v) as mobile phase. The linearity, matrix effect, recovery, and precision were evaluated. Good linearity was obtained over the concentration range of 1-500 μg L~(-1) for each enantiomer in the standard solution and sample matrix calibration solution. There was no significant matrix effect in apple, grape, cucumber, or tomato samples, but signal suppression was typically observed with the soil extracts. The mean recoveries, repeatability, and reproducibility were 76.5- 103 %, 2.1-9.0 %, and 4.2-11.8 %, respectively. The limit of quantification for enantiomers of the two fungicides in fruits, vegetables and soil was 5 μg kg-1. Moreover, the absolute configuration of the enantiomers of fenarimol and nuarimol was determined from a combination of experimentally determined and predicted electronic circular dichroism spectra.

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