attribute | text | details |
deconvolution | AMDIS, National Institute of Standards and Technology, Gaithersburg, MD, USA | DIRECTION:Low to High; WIDTH: 20; SUBTRACTION: two; RESOLUTION: low; SENSITIVITY: low; SHAPE: low |
derivatization | MEOX; TMS | Methoxyamination:60min37°C; Trimethylsilylation:>45min37°C |
detector | MS-Quad | m/z = 35-600; scans:2/s; MD 800 Thermo-Finnigan, San Jose, CA, USA |
extraction | methanol:water (4:1; v/v); 15min70°C | |
ion source | EI | 70eV |
metabolic inactivation | cut; liquid nitrogen; -80°C | |
partitioning | methanol fraction of a methanol:water:chloroform (approx. 2:2:1, v/v/v) partitioning | |
RI | ALKANE | C12, C15, C19, C22, C28, C32, C36 |
separation | GC | COLUMN:5%diphenyl-95%dimethylpolysiloxane (arylene), 30+10m, ID:0.25mm, DF:0.25microm, Rtx-5SilMS Integra-Guard, #NA (Restek, Bad Homburg, Germany); PROGRAM:iso1min70°C, ramp9°C/min, iso5min350°C; FLOW:Helium, 0.6ml/min; INJECTION:1microL, splitless, 230°C; TRANSFER:250°C; IONSOURCE:250°C |