
Analytical Methods That Drive Regulatory Confidence

Integrated Across the Full Lifecycle





Method Development
and Validation





| Category | Method |
|---|---|
| Identity | Capillary Isoelectric Focusing (cIEF) |
| Isoelectric Focusing (IEF) | |
| Peptide Mapping (LC-MS) | |
| Intact Mass (LC-MS) | |
| DNA Sequencing (Sanger/NGS) | |
| Purity | CE-SDS (reduced and non-reduced) |
| SEC-HPLC | |
| RP-HPLC | |
| IEX-HPLC (charge variants) | |
| SDS-PAGE | |
| Concentration | UV Absorbance (A280) |
| Fluorescence assays | |
| Physicochemical | Osmolality |
| pH and Conductivity | |
| Particle Sizing | |
| FTIR and Polarimetry | |
| Total Organic Carbon (TOC) | |
| Impurities | Host Cell Protein (HCP ELISA) |
| Residual DNA (qPCR) | |
| Plasmid Copy Number | |
| Bacteriophage (plaque assay) | |
| Safety | Endotoxin (LAL assay) |
| Bioburden | |
| Biological Activity | |
| Stability | ICH long-term, accelerated, stressed |
| Forced degradation | |
| Environmental | Environmental and utility monitoring |
Capillary Isoelectric Focusing (cIEF)
Isoelectric Focusing (IEF)
Peptide Mapping (LC-MS)
Intact Mass (LC-MS)
DNA Sequencing (Sanger/NGS)
CE-SDS (reduced and non-reduced)
SEC-HPLC
RP-HPLC
IEX-HPLC (charge variants)
SDS-PAGE
UV Absorbance (A280)
Fluorescence assays
Osmolality
pH and Conductivity
Particle Sizing
FTIR and Polarimetry
Total Organic Carbon (TOC)
Host Cell Protein (HCP ELISA)
Residual DNA (qPCR)
Plasmid Copy Number
Bacteriophage (plaque assay)
Endotoxin (LAL assay)
Bioburden
Biological Activity
ICH long-term, accelerated, stressed
Forced degradation
| Category | Method |
|---|---|
| Chemical | HPLC methods (identity, purity, assay) |
| HCP ELISA | |
| Extractables and Leachables | |
| Microbiological | Bioburden |
| Endotoxin | |
| Sterility | |
| Environmental monitoring | |
| Physicochemical | pH, Conductivity, Osmolality |
| Viscosity | |
| Particle Sizing | |
| DP-Specific | Container Closure Integrity (CCIT) |
| Particulate matter | |
| Cleaning verification | |
| Stability | ICH long-term, accelerated, stressed |
| Photostability | |
| Admixture compatibility |
HPLC methods (identity, purity, assay)
HCP ELISA
Extractables and Leachables
Bioburden
Endotoxin
Sterility
Environmental monitoring
pH, Conductivity, Osmolality
Viscosity
Particle Sizing
Container Closure Integrity (CCIT)
Particulate matter
Cleaning verification
ICH long-term, accelerated, stressed
Photostability
Admixture compatibility