Interlaced Size Exclusion Chromatography for faster protein analysis

Area of Science:

• Biochemistry
• Analytical Chemistry
• Chromatography

Background:

• Conventional Size Exclusion Chromatography (SEC) is time-consuming.
• Accelerated protein analysis is crucial for processes like monoclonal antibody (mAbs) development.
• High-throughput analysis is needed for multi-dimensional protein separations.

Purpose of the Study:

• To introduce and validate interlaced Size Exclusion Chromatography (SEC) for faster protein analysis.
• To demonstrate the advantages of interlaced SEC in terms of speed, precision, and sample stability.
• To explore applications of interlaced SEC in antibody aggregate analysis and 2D protein separations.

Main Methods:

• Implementation of interlaced Size Exclusion Chromatography (SEC).
• Analysis of monoclonal antibody (mAbs) samples for aggregate determination.
• Application of interlaced SEC in the second dimension of 2D protein separations.

Main Results:

• Achieved threefold higher sample throughput compared to conventional SEC.
• Demonstrated identical precision and preserved protein stability.
• Successfully analyzed 60 antibody samples in 5.5 hours, a significant reduction from 16 hours.

Conclusions:

• Interlaced SEC is a functional and effective method for accelerating protein analysis.
• The technique is suitable for time-critical applications such as mAb development and 2D chromatography.
• Interlaced SEC offers a convenient option for future method acceleration in protein analysis.