Magnetic functionalized graphene oxide combined with ultra-high performance liquid chromatography for trace detection of succinate dehydrogenase inhibitor fungicides in food.
Jiajie YangMinmin LiXiaowei LiuYonghong LiaoHaoran ZhaoJieyin ChenXiaofeng DaiBernabé Nuñez-EstevezZhiqiang KongMinwei ZhangPublished in: Journal of separation science (2023)
In this study, an efficient, sensitive, and convenient magnetic solid-phase extraction method combined with ultra-high performance liquid chromatography-tandem mass spectrometry (MSPE-UHPLC-MS/MS) was developed for the simultaneous determination of 19 succinate dehydrogenase inhibitor fungicide residues in six different food matrices The synthesized tetraethylenepentamine magnetic graphene oxide nanocomposite showed the advantages of good dispersibility, large specific surface area (113.93 m 2 /g) and large pore volume (0.25 cm 3 /g), making it an ideal succinate dehydrogenase inhibitor pretreatment adsorbent. The MSPE-UHPLC-MS/MS method showed linearity in the range of 5.0-800.0 μg/kg, with a correlation coefficient (R 2 ) > 0.99, and a limit of quantification of 5 μg/kg. The recovery of succinate dehydrogenase inhibitor fungicides was in the range of 71.2%-119.4%. The MSPE method is simple, rapid, and efficient, making it an ideal alternative to sample pretreatment in the determination of trace succinate dehydrogenase inhibitor fungicides in complex matrices.
Keyphrases
- solid phase extraction
- liquid chromatography tandem mass spectrometry
- molecularly imprinted
- simultaneous determination
- ultra high performance liquid chromatography
- tandem mass spectrometry
- high performance liquid chromatography
- ms ms
- gas chromatography mass spectrometry
- liquid chromatography
- gas chromatography
- high resolution mass spectrometry
- heavy metals
- mass spectrometry
- magnetic resonance imaging
- magnetic resonance
- computed tomography
- gold nanoparticles