Geert Alkema

gcms gas chromatography gc column hplc uplc gc-olfactometry gc inlet gc column pyrolysis phosphorylated peptide antibody antibody purification kit digestion monolithic silica spe monospin spe spin centrifuge columns py-gcms retention gap guard column mmse alternative for sbse stirbar peptides phosphorylated fragrance air sampling peek metal free peek column lc-ms lc/ms lc uhplc 100% water ptv on-column split splitless cryogenic chromatography gc o pyrolysis gcms analytical pyrolysis py-gc-ms olfaction re-focusing cryofocus cryo-focus cold trap cryotrap coldtrap cold-trap cryo-trap cryo trap sniffer gas chromatography - olfactometry gc olfactometry gc-o olfactometry lvi