Characterization of recombinant human granulocyte colony stimulating factor (rHuG-CSF) by capillary zone electrophoresis, capillary isoelectric focusing electrophoresis and electrospray ionization mass spectrometry.


Recombinant human granulocyte colony-stimulating factor (rHuG-CSF) is a hematopietic cytokine that stimulates and regulates the proliferation and differentiation of neutrophils. Glycosylated and non-glycosylated forms of rHuG-CSF cannot be distinguished by traditional biological assays. In addition, it is very difficult to characterize impurities of the… (More)


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