AA	amino-acid
AAS	atomic absorption spectroscopy
Alb	albumin
Blue	HiTrap blue affinity column
CRM	certified reference material
ELISA	enzyme-linked immunosorbent assay
ESI	electrospray ionizarion
FT-ICR	fourier-transform ion cyclotron resonance
Glu-C	endoproteinase glu-c = glutamyl endopeptidase
Gpx	glutathione peroxidase
Hep	HiTrap heparin affinity column
His	histidine
HMW	high molecular weight
HPLC	high pressure liquid chromatography
ICP-MS	inductively coupled plasma- mass spectrometry
IDA	isotopic dilution analysis
IEF	isoelectric focusing
ILMA	immunoluminometric assay
IMAC	immobilized metal ion affinity chromatography
iTRAQ	isobaric tagging for relative and absolute quantification
LA	laser ablation
LC	liquid chromatography
LFQ	label-free quantification
LMW	low molecular weight
MARC	multi-affinity removal column
MALDI	matrix-assisted laser desorption/ionization
MS	mass spectrometry
NTA	nitrilotriacetic acid
PNGaseF	peptide: N-glycosidase F
PVDF	polyvinylidene fluoride
SAX	strong anion-exchange column
SDS-PAGE	sodium dodecyl sulphate- polyacrylamide gel-electrophoresis
SEC	size-exclusion chromatography
SECIS	selenocysteine insertion structure
SeCys	selenocysteine
SELENOP	selenoprotein P
SPIA	sol particle homogeneous immunoassay
SUID	species-unspecific isotopic dilution analysis