Additional Supporting Resources
In-Process Testing
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Concentration
Determination of the number of molecules per unit volume, expressed in milligrams per milliliter.-
Reference Standards
1076192: BSA for Protein Quantitation
1445539: USP mAb 001, monoclonal IgG1
1445547: USP mAb 002, monoclonal IgG1
1445595: USP mAb 003, monoclonal IgG1
Documentary Standards (USP-NF)
<507> Protein Determination Procedures
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Process Related Impurities
Tests for substances like host cell proteins that are produced during the manufacturing process-
Residual DNA
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Reference Standards
Documentary Standards (USP-NF)
Other Resources
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Host Cell Proteins
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Documentary Standards (USP-NF)
<1102> Immunological Test Methods—General Considerations
<1103> Immunological Test Methods—Enzyme-Linked Immunosorbent Assay (ELISA)
<1132> Residual Host Cell Protein Measurement in Biopharmaceuticals
Analytical Reference Materials
1582716: PLBL2 (Phospholipase B-like 2) Host Cell Protein
Stable Isotope Labeled (SIL) Peptides
1130730: CHO HCP Clusterin Heavy Peptide 1 NEW!
1130741: CHO HCP Clusterin Heavy Peptide 2 NEW!
1130752: CHO HCP Clusterin Heavy Peptide 3 NEW!
1130763: CHO HCP Lipoprotein Lipase Peptide 1 NEW!
1130774: CHO HCP Lipoprotein Lipase Peptide 2 NEW!
1130785: CHO HCP Lipoprotein Lipase Peptide 3 NEW!
USP Educational Content
Other Resources
Presentation: USP Standards Host Cell Protein Analysis by MS
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Residual Proteins
(e.g. Protein A)
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Charge Variants
Tests for acidic and basic variants which may be caused by deamidation or oxidation-
Ion Exchange Chromatography
(IEX)
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Documentary Standards (USP-NF)
USP Educational Content
Analysis of Charge Variants in Biologics
Other Resources
Poster: Standards for Cation Exchange Chromatography
Presentation: Reference Standards, Analysis of Charge Variants
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Isoelectric focusing
(cIEF/iCIEF)
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Reference Standards
1445539: USP mAb 001, monoclonal IgG1
1445547: USP mAb 002, monoclonal IgG1
1445595: USP mAb 003, monoclonal IgG1
USP Educational Content
Analysis of Charge Variants in Biologics
Documentary Standards (USP-NF)
<1053> Capillary Electrophoresis
<1054> Biotechnology-Derived Articles—Isoelectric Focusing
Other Resources
Presentation: Reference Standards, Analysis of Charge Variants
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Peptide Mapping
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Documentary Standards (USP-NF)
<1055> Biotechnology-Derived Articles—Peptide Mapping
Other Resources
Tech Note: Charge Variant Analysis of USP mAb Standards
Presentation: Reference Standards, Analysis of Charge Variants
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Size Variants
Tests for protein aggregates and fragments that may form during manufacturing or storage-
Intact Mass
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Reference Standards
1076192: BSA for Protein Quantitation
1445539: USP mAb 001, monoclonal IgG1
1445547: USP mAb 002, monoclonal IgG1
1445595: USP mAb 003, monoclonal IgG1
Documentary Standards (USP-NF)
<1736> Applications of Mass Spectrometry
Other Resources
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SEC-MALS
(Multi-Angle Light Scattering)
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Size Exclusion
(SEC-HPLC, SEC-UPLC)
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CE-SDS
(Reduced and Non-Reduced)
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SDS-PAGE
(Reduced and Non-Reduced)
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Reference Standards
1445550: Monoclonal IgG System Suitability
1445539: USP mAb 001, monoclonal IgG1
1445547: USP mAb 002, monoclonal IgG1
1445595: USP mAb 003, monoclonal IgG1
Documentary Standards (USP-NF)
<129> Analytical procedures for recombinant therapeutic monoclonal antibodies
<1056> Biotechnology-Derived Articles—Polyacrylamide Gel Electrophoresis
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Glycosylation
Tests for covalently attached sugars that can modulate biological activity-
N-Linked Glycan Profiling
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Reference Standards
1478210: Oligosaccharide System Suitability Mixture A
1478221: Oligosaccharide System Suitability Mixture B
1478232 Oligosaccharide System Suitability Mixture C
1478243 Oligosaccharide System Suitability Mixture D
Documentary Standards (USP-NF)
<129> Analytical Procedures for Recombinant Therapeutic Monoclonal Antibodies
<212> Oligosaccharide Analysis
<1084> Glycoprotein and Glycan Analysis-General Considerations
Other Resources
Manuscript: USP mAb Ref Stds: Tools to Verify Glycan Structure
Manuscript: Comprehensive Stds for Monitoring Glycosylation
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Monosaccharide Analysis
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Reference Standards
1612619: N-Acetylneuraminic Acid
1294284: N-Glycolylneuraminic Acid
Documentary Standards (USP-NF)
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Mass Spectrometry
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Reference Standards
1445539: USP mAb 001, monoclonal IgG1
1445547: USP mAb 002, monoclonal IgG1
1445595: USP mAb 003, monoclonal IgG1
Documentary Standards (USP-NF)
<1736> Applications of Mass Spectrometry
Other Resources
Manuscript: Macro- and Micro-heterogeneity of Glycosylation
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Safety
Tests for possible contamination with microorganisms.-
Endotoxin
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Reference Standards
Documentary Standards (USP-NF)
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Bioburden
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Documentary Standards (USP-NF)
<1229.3> Monitoring of Bioburden
<61> Microbiological Examination Of Nonsterile Products: Microbial Enumeration Tests
<62> Microbiological Examination Of Nonsterile Products: Tests For Specified Microorganisms
USP Educational Content
Essentials of Testing and Control of Microbial Quality of Nonsterile Drug Substances and Products
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Sterility
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Documentary Standards (USP-NF)
<1071> Rapid Microbial Tests for Release of Sterile Short-Life Products: A Risk-Based Approach
USP Educational Content
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Mycoplasma
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Documentary Standards (USP-NF)
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