title: Purity of biological products: related and unrelated impurities.
authors.affiliation: Analytical Research & Development, Amgen, Thousand Oaks, CA 91320-1789, USA.
authors.forename: A C
authors.initials: AC
authors.lastname: Herman
mesh_terms: D000595:Amino Acid Sequence; D019943:Amino Acid Substitution; D000818:Animals; D001483:Base Sequence; D001688:Biological Products / Q000737:chemistry / Q000302:isolation & purification* / Q000592:standards; D001709:Biotechnology; D016179:Granulocyte Colony-Stimulating Factor / Q000737:chemistry / Q000235:genetics / Q000302:isolation & purification; D016173:Macrophage Colony-Stimulating Factor / Q000737:chemistry / Q000235:genetics / Q000302:isolation & purification; D013058:Mass Spectrometry; D008969:Molecular Sequence Data; D009414:Nerve Growth Factors / Q000737:chemistry / Q000235:genetics / Q000302:isolation & purification; D020933:Neurotrophin 3; D012346:RNA, Transfer, Amino Acyl / Q000235:genetics; D011994:Recombinant Proteins / Q000737:chemistry / Q000302:isolation & purification / Q000592:standards
chemical_list: D001688:Biological Products; D009414:Nerve Growth Factors; D020933:Neurotrophin 3; D012346:RNA, Transfer, Amino Acyl; D011994:Recombinant Proteins; D016179:Granulocyte Colony-Stimulating Factor; D016173:Macrophage Colony-Stimulating Factor