306-307 / 582
3. Cleanup
Transfer supernatant
to cleanup tube
Shake (30 sec)
Centrifuge (5 min)
Transfer cleaned
extract to an
autosampler vial for
analysis
Guide to Sorbents
Removes
Sugars and fatty acids
Primary secondary amine (PSA)
Sorbent
Octadecyl (C18)
Lipids
Pigments and sterols
Graphitized carbon black (GCB)