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Improved reversed-phase high performance liquid chromatography columns for biopharmaceutical analysis
R D Ricker1, L A Sandoval, B J Permar
1Rockland Technologies, Inc., Newport, DE 19804, USA.
Journal of Pharmaceutical and Biomedical Analysis
|December 1, 1995
Summary
StableBond Technology enhances reversed-phase high-performance liquid chromatography (RP-HPLC) for peptide and protein analysis. Sterically protected bonded phases offer improved stability and reproducibility over traditional short-chain phases.
Area of Science:
- Biochemistry
- Analytical Chemistry
- Chromatography
Background:
- Reversed-phase high-performance liquid chromatography (RP-HPLC) is crucial for peptide and protein analysis in biomolecular and pharmaceutical research.
- Mobile-phase conditions in RP-HPLC for peptides and proteins are largely fixed, necessitating alternative strategies for optimizing separations.
- Traditional short-chain bonded phases (e.g., C8, C18) exhibit instability and poor reproducibility due to hydrolysis, limiting their effectiveness.
Purpose of the Study:
- To compare the performance of sterically protected bonded phases (StableBond Technology) with traditional polymeric bonded-phase silica columns.
- To evaluate lot-to-lot reproducibility, bonded-phase stability, and selectivity effects.
- To investigate the operational advantages of high-temperature operation with stable bonded phases.
Main Methods:
- Comparison of traditional polymeric bonded-phase silica columns and sterically protected, highly purified silica stationary phases.
- Evaluation of lot-to-lot reproducibility and bonded-phase stability under various conditions.
- Assessment of selectivity differences between various bonded phases.
- Investigation of high-temperature operation capabilities.
Main Results:
- Sterically protected bonded phases demonstrate superior stability and reproducibility compared to traditional short-chain phases.
- StableBond Technology minimizes hydrolysis susceptibility, leading to more robust separations.
- Significant differences in selectivity were observed between various bonded phases, offering tunable separation mechanisms.
- High-temperature operation is feasible and advantageous with these stable bonded phases, enhancing efficiency.
Conclusions:
- Sterically protected bonded phases represent a significant advancement for reproducible and stable RP-HPLC of peptides and proteins.
- StableBond Technology overcomes the limitations of traditional short-chain phases, enabling more reliable biomolecular analysis.
- The development of stable, high-performance stationary phases facilitates improved chromatographic method development and operational flexibility.