Conventionally, the process of identifying individual charge variant components and interpreting their structural differences takes weeks, and requires the use of multiple instruments with multiple manual steps.
When the Intabio ZT system is coupled with the ZenoTOF 7600 system, separation, quantitation and identification of charge variants can be achieved in minutes on a single integrated system.
Separation of charge variants with imaged capillary isoelectric focusing (icIEF) and quantitation with imaged UV detection occurs within the separation channel
To enable electrospray ionization, electrolyte is introduced through the mobilizer channel near the ESI tip, to re-ionize the charge variants. The electric field is re-oriented to initiate the mobilization of the peaks toward the electrospray “ESI” tip. This novel chemical mobilization process ensures that peak resolution is maintained throughout MS detection.
Separated charge variants are introduced to the mass spectrometer by electrospray ionization for peak identification.
Experience icIEF separation and UV detection coupled with mass spectrometry identification on the ZenoTOF 7600 system. One workflow, on a single platform, enables rapid monitoring of intact biotherapeutics and identification of charge variants throughout the drug development pipeline.
Achieve the full picture and accelerate decisions with comprehensive characterization of biopharmaceutical charge variants.
Confidently select lead candidates and ensure reproducible product quality. Fast and reliable protein analysis solutions that simplify identification and characterization of complex molecules at the intact level.
Highly confident identification of CQAs with an integrated icIEF-UV/MS solution that identifies low abundant PTMs at the intact protein level.
Gain advantages in data quality and time with an integrated system that offers high-resolution and high-throughput separation of intact mAbs and their charge variants.
A single platform icIEF-UV/MS workflow offers high sensitivity and selectivity to detect low-abundant proteoforms that could impact product quality.