The Significance of pH, Counter Ions, Bonding Chemistry and Pore Size in Silica-based Reversed Phase Method Development for Pharmaceuticals
Michael K. Li, Vydac/The Separations Group, Inc.
presented at Pharmaceutical Conference of the Americas / Orlando, FL, USA / March 25-29, 2001

Effects of Particle Size on Throughput in High-Performance Polymeric Reversed-Phase Semipreparative Gradient Purification of Peptides and Proteins
John H. Kindsvater, Michael Li, Nan Li, and Kervin Harrison, Vydac/The Separations Group, Inc.
presented at HPLC 2000 / Seattle, WA, USA / June 24-30, 2000

Ion Exchange of Polypeptides: The Role of pH, Solvent and Column Length
Michael K. Li and Paul J. Kostel, Vydac/The Separations Group, Inc.
presented at 16th American Peptide Symposium / Minneapolis, MN, USA / June 26-July 1, 1999

LC/MS Reversed-Phase Columns with Excellent Polypeptide Resolution in Low TFA Concentrations
M.K. Li and P.J. Kostel, Vydac/The Separations Group, Inc.
presented at ABRF / Durham, NC, USA / March 19-22, 1999

The Separation of Oligonucleotides by Ion Exchange and Reversed Phase: The Importance of the Mobile Phase
Paul Kostel and Michael Li, Vydac/The Separations Group, Inc.
presented at ABRF / Durham, NC, USA / March 19-22, 1999

Practical Aspects for the Development of a Reversed-Phase Analytical Method for Bio-Pharmaceuticals
Paul Kostel and Michael Li, Vydac/The Separations Group, Inc.
presented at the 3rd International Symposium on the Analysis of Well-Characterized Biotechnology Pharmaceuticals, Washington, DC, USA / January 5-8, 1999

Purification of a Lipid Peptide: Method Development for Hydrophobic Peptides
Paul Kostel* and Don J. Diamond**
*Vydac/The Separations Group, Inc., Hesperia, CA and **City of Hope National Medical Center, Duarte, CA, USA
presented at ABRF / 1998

A Novel Polymer-Based Reversed-Phase HPLC Column for High-Performance Separation of Polypeptides
Yan-Bo Yang, John Kindsvater, Kervin Harrison, and Paul Kostel, Vydac/The Separations Group, Inc.
presented at ABRF / 1998

Separation of Fat-Soluble Vitamins by Reversed-Phase C18: Advantages of Wide-Pore Silica and Polymeric Bonding for Hydrophobic Small Molecules
Paul Kostel, Vydac/The Separations Group, Inc.
presented at HPLC 98

The Influence of C18 Ligand Type on the Peptide Selectivity of Silica-Based Reversed-Phase Columns
Yan-Bo Yang, Kervin Harrison, Paul Kostel, and William Campbell, Vydac/The Separations Group, Inc.
presented at HPLC 97

Separation of Oligonucleotides and Anti-Sense Oligonucleotides on a Novel Porous-Polymer-Based Anion-Exchange Column
Yan-Bo Yang, Paul Kostel, and Kervin Harrison, Vydac/The Separations Group, Inc.
presented at HPLC 97

Preparative Separation of Peptides and Proteins
Ion Exchange followed by Reverse Phase: Synergistic Methods for Effective Purification
Paul Kostel, Vydac/The Separations Group, Inc.
presented at Prep 97