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  • Sample Processing at Pittcon® 2014

    Tuesday, May 06, 2014
    Application Note
    Robert L. Stevenson, Ph.D.
    The tenfold increase in speed for the analytics (GC, HPLC, and SFC [supercritical fluid chromatography], all with MS) over the last decade has shifted the choke point in many workflows from analytics ... read more

  • Sample Prep for LC, GC, and SFC at Pittcon® 2013

    Friday, May 10, 2013
    Technical Article
    Robert L. Stevenson, Ph.D.
    At Pittcon® 2013, sample prep stood out as a major focus, perhaps because of the few advances in chromatography instrumentation. In addition, some sample preparation is spilling over into other ... read more

  • New Instrumentation and Applications at HPLC 2012

    Friday, August 10, 2012
    Technical Article
    Robert L. Stevenson, Ph.D.
    A marketplace is usually dynamic, with a cross-current of disparate interests meeting to find mutual satisfaction. read more

  • Statistics in Analytical Chemistry: Part 18—Calibration Example 6 (Concluded)

    Thursday, September 01, 2005
    Technical Article
    David Coleman Lynn Vanatta
    In the previous article (American Laboratory Aug 2005), borate data were presented. No single model was found to be adequate. 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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