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  • Title: Fast enantioselective determination of triadimefon in different matrices by supercritical fluid chromatography.
    Author: Mai B, Fan J, Jiang Y, He R, Lai Y, Zhang W.
    Journal: J Chromatogr B Analyt Technol Biomed Life Sci; 2019 Sep 15; 1126-1127():121740. PubMed ID: 31400581.
    Abstract:
    A fast analytical method through supercritical fluid chromatography was developed for enantioselective determination of triadimefon in soil and apple samples. Effects of chiral stationary phases, co-solvents, column temperature, and back pressure on chiral separation of triadimefon were discussed in detail. Chiral stationary phases containing electron-donating units located at phenylcarbamate moieties showed better enanitonrecognition abilities in triadimefon than those with electron-withdrawing units. Then, the modified pretreatment procedure was applied in enantioselective analysis of triadimefon in two matrices. When using cellulose tris(3,5-dimethylphenylcarbamate)-coated silica gel as the chiral stationary phase and the CO2-methanol (95/5, v/v) mixture as the mobile phase, the LOD and LOQ were 0.38 mg/kg and 2.00 mg/kg, respectively, much lower than the others chiral stationary phases. Good linearity (R2 = 0.9999) and recoveries (92.90-105.56%，RSD ≤ 1.52%) for them were achieved.
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