What sample amount is needed for a full characterization study?

Sample requirements depend on the number of assays selected and the sensitivity of each method. We determine the exact quantity during project scoping based on the material available and the intended test menu. Multiple aliquots or a single concentrated lot can typically be accommodated.

Do you provide stability study design support?

Yes. Our scientists can help design stability protocols including storage conditions, time points, and attribute selection based on ICH Q5C and relevant vaccine-specific guidance. The study scope, including number of pulls and testing endpoints, is agreed upon before initiation.

How do you ensure method transferability to our QC lab?

We fully document all methods with acceptance criteria, system suitability, and raw data, enabling straightforward transfer. If requested, we can also perform a method qualification bridging study or provide training materials. Each deliverable package is designed to support internal validation by your team.

Is this service suitable for reference materials used in clinical trials?

Our characterization service is intended for research use and into the later stages of product development. For materials intended for clinical use or GMP manufacturing, please confirm additional quality requirements during project scoping so that we can align our approach accordingly.

Can you characterize polysaccharide or conjugate vaccine reference materials?

We have experience with a variety of biopharmaceutical modalities including proteins, polysaccharides, conjugates, and adjuvants. Physicochemical characterization of polysaccharides typically includes molecular weight, sugar composition, and linkage analysis. Please describe your material during the initial consultation so we can tailor the analytical plan.

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Reference Material Physicochemical and Biological Characterization

Reference Standard Characterization

Comprehensive CRO services to thoroughly characterize reference standards for vaccine quality control, ensuring consistency, regulatory.

Integrated physicochemical profiling (MS, HPLC, CE)
Biological potency and binding assays
Stability studies per ICH guidelines
Regulatory-ready documentation support

Discuss Your Project

Why Systematic Characterization Matters for Your Reference Standards

A well-characterized reference material is the cornerstone of consistent vaccine quality control. Our service de-risks batch release and stability monitoring by delivering detailed physicochemical and biological data you can trust.

Reduces variability in QC assays
Supports regulatory submissions with complete characterization data
Enables reliable comparability across lots and stability time points

Regulatory-Aligned

Reproducible

Comprehensive

Our Characterization Approach

Tailored Analytical Strategies for Every Reference Material

We combine orthogonal physicochemical techniques with biologically relevant assays to deliver a complete picture of your reference standard's identity, purity, potency, and stability.

Core Physicochemical Pipeline

Mass spectrometry, chromatography, and electrophoretic methods are applied to define molecular weight, primary sequence, post-translational modifications, charge variants, and aggregation state.

Mass spectrometry for intact mass and peptide mapping
Size-exclusion chromatography for aggregation profiling
Ion-exchange chromatography for charge variant analysis

Multi-Attribute Integration

Physicochemical data are correlated with biological activity results to establish meaningful specifications and support quality attribute criticality assessments.

Integrated data packages linking structure to function
Stability-indicating method selection based on degradation pathways
Cross-method consistency checks for robust reference value assignment

Quality by Design

Methods are developed and validated with ICH Q2(R1) principles, ensuring that each assay is fit for its intended purpose within your QC workflow.

Statistical Rigor

Reference value assignment and uncertainty estimation follow ISO Guide 35 or equivalent guidance, providing confidence for inter-laboratory comparisons.

Biological Relevance

Potency assays (cell-based or binding) are selected to reflect the product's mechanism of action, ensuring that the reference material reflects clinically relevant functionality.

What You Receive

Complete Data Packages for Informed Decision-Making

Every project delivers a structured report with raw data, analytical methods, and a summary of findings suitable for internal review and regulatory filing support.

Data Deliverables

Full analytical data sets (chromatograms, mass spectra, raw data files)
Processed results with statistical analysis (mean, SD, %CV)
Summary report with assigned reference values and confidence intervals

Reporting & Support

Draft and final study reports in PDF and editable formats
Method descriptions (scope, acceptance criteria, system suitability)
Consultation on data interpretation and next-study planning

Project Scope

Parameters Customized for Your Reference Material

The analytical suite is scoped per project based on the material type, intended use, and regulatory context. Below are typical parameters we evaluate.

Parameter	Typical Project Scope
Protein Concentration	UV spectrophotometry (A280) or amino acid analysis; reported with %CV
Molecular Weight / Mass	Intact mass by LC-MS; mass accuracy ± 2 Da typical
Peptide Mapping & Sequence Coverage	LC-MS/MS with performance scoped per project sequence coverage; disulfide bond mapping included
Charge Variants	IEX-HPLC or cIEF; acidic, main, and basic peak percentages
Aggregation / Fragmentation	SEC-HPLC with UV or MALS detection; HMW and LMW species quantified
Potency / Bioactivity	Cell-based or binding assay; relative potency vs. in-house reference

Engagement Process

From Consultation to Delivered Data in Five Steps

Our structured workflow ensures alignment on objectives, method selection, and documentation before any analytical work begins.

Project Scoping

Define the reference material (type, quantity, intended use), select analytical parameters, and agree on timelines and documentation format during a kickoff discussion.

Method Development & Qualification

Based on the project scope, we develop or adapt analytical methods, establish system suitability criteria, and perform prequalification runs to confirm assay performance.

Characterization Execution

Physicochemical and biological assays are executed in replicate, with in-process controls and data integrity checks to ensure traceability and reproducibility.

Data Analysis & Interpretation

Raw data are processed using validated software, outliers are evaluated, and statistical summaries (mean, SD, confidence intervals) are generated for each parameter.

Reporting & Delivery

A comprehensive report is compiled with methods, results, and conclusions. We provide a review period for your feedback and finalize the document for your use.

Applications

Where Rigorous Characterization Adds the Most Value

Our service supports reference material qualification across vaccine development, manufacturing, and stability monitoring.

Establishing a Primary Reference Standard for Lot Release

A fully characterized reference standard reduces inter-assay and inter-laboratory variability, enabling consistent batch release decisions.

Multi-parameter release specifications defined from characterization data
Cross-validated methods for identity, purity, and potency

Supporting Biosimilar Development with a Robust Reference

Comprehensive physicochemical and biological characterization demonstrates similarity to the innovator product and supports regulatory filing.

High-resolution mass spectrometry for sequence confirmation
Functional assays reflecting mechanism of action

Tracking Attribute Changes Over Product Lifecycle

Periodic recharacterization using the same analytical panel detects drift, aggregation, or degradation, supporting shelf-life assignment.

Stability-indicating assays selected per degradation pathways
Trend analysis across time points with statistical tools

Frequently Asked Questions

Common Questions About Reference Material Characterization

Find answers about sample requirements, analytical scope, and how we tailor projects to your needs.

Sample requirements depend on the number of assays selected and the sensitivity of each method. We determine the exact quantity during project scoping based on the material available and the intended test menu. Multiple aliquots or a single concentrated lot can typically be accommodated.
Yes. Our scientists can help design stability protocols including storage conditions, time points, and attribute selection based on ICH Q5C and relevant vaccine-specific guidance. The study scope, including number of pulls and testing endpoints, is agreed upon before initiation.
We fully document all methods with acceptance criteria, system suitability, and raw data, enabling straightforward transfer. If requested, we can also perform a method qualification bridging study or provide training materials. Each deliverable package is designed to support internal validation by your team.
Our characterization service is intended for research use and into the later stages of product development. For materials intended for clinical use or GMP manufacturing, please confirm additional quality requirements during project scoping so that we can align our approach accordingly.
We have experience with a variety of biopharmaceutical modalities including proteins, polysaccharides, conjugates, and adjuvants. Physicochemical characterization of polysaccharides typically includes molecular weight, sugar composition, and linkage analysis. Please describe your material during the initial consultation so we can tailor the analytical plan.

Scientific Literature

References

Kinumi T, Saikusa K, Kato M, et al. Characterization and Value Assignment of a Monoclonal Antibody Reference Material, NMIJ RM 6208a, AIST-MAB. Frontiers in molecular biosciences. 2022;9:842041. View on PubMed
Wang J, Ma Z, Wang C, et al. Melanin in Auricularia auricula: biosynthesis, production, physicochemical characterization, biological functions, and applications. Food science and biotechnology. 2024;33(8):1751-1758. View on PubMed
Carpentier N, Van der Meeren L, Skirtach AG, et al. Gelatin-Based Hybrid Hydrogel Scaffolds: Toward Physicochemical Liver Mimicry. Biomacromolecules. 2023;24(10):4333-4347. View on PubMed
Aboulghazi A, Touzani S, Fadil M, et al. Physicochemical characterization and in vitro evaluation of the antioxidant and anticandidal activities of Moroccan propolis. Veterinary world. 2022;15(2):341-349. View on PubMed
Pandey S, Rai LC, Dubey SK. Cyanobacteria: miniature factories for green synthesis of metallic nanomaterials: a review. Biometals: an international journal on the role of metal ions in biology, biochemistry, and medicine. 2022;35(4):653-674. View on PubMed
Shen X, Wang Z, Gao XJ, et al. Reaction Mechanisms and Kinetics of Nanozymes: Insights from Theory and Computation. Advanced materials (Deerfield Beach, Fla.). 2024;36(10):e2211151. View on PubMed

Please kindly note that our products and services are for research use only.