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  • Pittcon 2013®: Developments in Liquid Chromatography

    Monday, May 13, 2013
    Technical Article
    Robert L. Stevenson, Ph.D.
    The first commercial liquid chromatograph was probably an amino acid analyzer. These ion exchange chromatographs were so specialized that they had almost no impact on chemical analysis outside of ... read more

  • Advances in Liquid Phase Separation at Pittcon® 2012

    Monday, May 07, 2012
    Technical Article
    Robert L. Stevenson, Ph.D.
    Eight years have passed since Waters introduced the ACQUITY UPLC®. This is a long life cycle for a groundbreaking instrument. read more

  • Separation Science Highlights From Pittcon® 2011

    Tuesday, May 10, 2011
    Technical Article
    Robert L. Stevenson, Ph.D.
    At Pittcon® 2011, most new products appeared to be evolutionary, not revolutionary. read more

  • UHPLC’s Seven Year Itch: Quo Vadis?

    Tuesday, April 12, 2011
    Technical Article
    Robert L. Stevenson, Ph.D.
    At Pittcon in 2004, Waters (Milford, MA) introduced the ACQUITY UPLC chromatograph with a 15,000-psi Pmax, and the rest of the LC world had to play an intense game of catch-up. read more

  • Capillary-Channeled Polymer (C-CP) Fibers: A Novel Platform for Liquid-Phase Separations

    Wednesday, June 01, 2005
    Technical Article
    Dwella M. Nelson Rayman D. Stanelle Phil Brown R. Kenneth Marcus
    In spite of its relative maturity as a group of analytical methods, the field of liquid chromatography continues to evolve with regard to the development of new stationary phases that may provide ... read more

  • Using FAIMS to Increase Selectivity for LC-MS Analyses

    Wednesday, June 01, 2005
    Technical Article
    Roger Guevremont Beata Kolakowski
    In the development of many LC-MS methods, interferences are commonplace. In an environment in which data must stand up to rigorous scrutiny, such as in the pharmaceutical industry, selectivity of ... read more

  • Dielectrophoretic Force Microscopy

    Wednesday, January 19, 2005
    Application Note
    Al M. Hilton Brian P. Lynch Garth J. Simpson
    Dielectrophoresis (DEP), the force exerted on a polarizable particle in a nonuniform electric field, has been used with great success in recent years to manipulate and separate cells and biomolecules. read more
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