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Ron Majors, editor of "Column Watch" and "Sample Prep Perspectives," has been with LCGC North America for over 26 years. Currently a senior scientist with Agilent Technologies, Wilmington, Delaware, Ron is known industry-wide as one of the premier chromatography experts in the field. He is also a member of LCGC's editorial advisory board.
Column packing materials continue to evolve as user needs for highthroughput, high-resolution and high-sensitivity HPLC analyses drive further developments. In this introductory article to this supplement, Ron Majors covers basic column packing morphology and particle design and compares and contrasts modern HPLC columns. Some applications of modern HPLC columns are provided. Future directions in packing developments are predicted.