HCP	Host cell protein
CHO	Chinese hamster ovary
SPARC	Secreted protein acidic and cysteine-rich
FT	Flow-through
HMBA	Hydroxymethylbenzoic acid
SPPS	Solid phase peptide synthesis
LC/MS/MS	Liquid chromatography-tandem mass spectrometry
OBOP	One-bead-one-peptide
DMF	N′,N′-dimethylformamide
Fmoc	fluorenylmethyloxycarbonyl
HATU	7-Azabenzotriazol-1-yloxy)tripyrrolidino-phosphonium hexafluorophosphate
DIPEA	diisopropylethylamine
NMP	N-methyl-2-pyrrolidone
TFA	Trifluoroacetic acid
EDT	Ethanedithiol
TIPS	triisopropylsilane
mAb	Monoclonal antibody
IgG	Immunoglobulin
PES	Polyethersulfone
Q-ToF	Quadrupole time-of-flight mass spectrometer
UPLC	Ultra performance liquid chromatography
ESI	Electrospray ionization