Publication
Rapid metabolite identification with sub parts-per-million mass accuracy from biological matrices by direct infusion nanoelectrospray ionization after clean-up on a ZipTip and LTQ/Orbitrap mass spectrometry
Erve, J.C.; Demaio, W.; Talaat, R.E.
Rapid Commun Mass Spectrom. 2008 Oct;22(19):3015-26