attribute | text | details |
deconvolution | ChromaTOF | BASELINE OFFSET: 1; SMOOTHING: 5; PEAK WIDTH: 3s; S/N: 10 |
derivatization | MEOX; MSTFA | METHOXYAMINATION: 120min at 37°C; TRIMETHYLSILYLATION: 30min at 37°C |
detector | MS-TOF | m/z = 70-600; scans:20/s; |
extraction | chloroform:dH2O | (2:1; v/v); chloroform (20°C); dH2O (4°C) |
ion source | EI | 70eV |
RI | FAME, d6-Cholesterole | FAME: C8, C9, C10, C12, C14, C16, C18, C20, C22, C24, C26, C28, C30 |
separation | GC | COLUMN:35%phenyl-65%dimethylpolysiloxane, 30m, ID:0.32mm, DF:0.25µm, MDN-35 (Macherey-Nagel, Düren, Germany); PROGRAM:iso 2min 80°C, ramp 15°C/min, iso 6min 330°C; FLOW:Helium, 2mL/min; INJECTION:1µL, splitless, 230°C; TRANSFER:250°C; IONSOURCE:250°C |