Research Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng, China.
State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.
Chirality. 2021 Mar;33(3):134-142. doi: 10.1002/chir.23296. Epub 2021 Jan 18.
Famoxadone enantiomers were separated on Lux Amylose-1 chiral column and determined by ultra-performance liquid chromatography coupled with tandem mass spectrometry (UPLC-MS/MS). The half-lives of R-(-)-famoxadone and S-(+)-famoxadone were 69.3 and 86.6 h in apple cider, 231.0 and 346.5 h in apple pomace, 69.3 and 77.0 h in grape wine, and 231.0 and 346.5 h in grape pomace, respectively. The enantiomeric fraction (EF) values decreased gradually from 0.498, 0.499, and 0.500 (0 h) to 0.404, 0.374, and 0.427 (144 h) and then increased gradually to 0.474, 0.427, and 0.422 (312 h) in apple cider, grape wine, and grape pomace. The EF value in apple pomace decreased gradually from 0.499 (0 h) to 0.450 (168 h) and then increased gradually to 0.482 (312 h). The processing factors (PFs) for famoxadone ranged from 0.014 to 0.024 in the overall process. The residue of famoxadone reduced 94.7-97.4% after the fermentation process.
氟吗啉对映异构体在 Lux Amylose-1 手性柱上分离,并用超高效液相色谱-串联质谱法(UPLC-MS/MS)测定。R-(-)-氟吗啉和 S-(+)-氟吗啉在苹果 cider 中的半衰期分别为 69.3 和 86.6 h,在苹果渣中的半衰期分别为 231.0 和 346.5 h,在葡萄酒中的半衰期分别为 69.3 和 77.0 h,在葡萄渣中的半衰期分别为 231.0 和 346.5 h。对映体分数(EF)值从 0.498、0.499 和 0.500(0 h)逐渐降至 0.404、0.374 和 0.427(144 h),然后逐渐增至 0.474、0.427 和 0.422(312 h),在苹果 cider、葡萄酒和葡萄渣中。苹果渣中的 EF 值从 0.499(0 h)逐渐降至 0.450(168 h),然后逐渐增至 0.482(312 h)。氟吗啉的加工因子(PF)在整个过程中范围为 0.014 至 0.024。发酵过程后,氟吗啉的残留量减少了 94.7-97.4%。