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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

  • Measurement and Prediction of Fluid Viscosity at High Shear Rates

    Tuesday, April 09, 2013
    Application Note
    Tien T. Dao Jeshwanth K. Rameshwaram
    Polymeric materials, in a general sense, are viscoelastic in nature since they exhibit a strong dependence of deformation and flow on time and temperature. Performance of these materials can only be ... 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

  • Product Intelligence: Rheometry Buyers' Guide

    Sunday, January 01, 2012
    Technical Article
    Jeffrey M. Perkel
    This article is a valuable guide to choosing a rheometer including application, ease of use, configurability, viscosity range, and geometry type. Among the basic types discussed are a rotational ... read more

  • Small-Scale Vane Rheometry

    Tuesday, August 02, 2011
    Application Note
    David Moonay
    Vane rheometry continues to become more well-known and popular. read more

  • Capillary Rheometry: Analysis of Low-Viscosity Fluids, and Viscous Liquids and Melts at High Shear ...

    Thursday, October 01, 2009
    Technical Article
    Tien T. Dao Allan X. Ye Kaj Hedman Ali A. Shaito Nick Roye
    Rheology is defined as the study of the flow and deformation of fluids. Based on the need to quickly and accurately set and control processing conditions, optimize product performance, and/or ... read more

  • Increased Throughput in Method 8270 Analysis

    Monday, January 01, 2007
    Application Note
    William D. Goodman Frank DeLorenzo
    Method 8270 is a GC-MS method created by the U.S. EPA Office of Solid Waste for the analysis of semivolatile organics by gas chromatography-mass spectrometry. read more

  • Automated Chemical Ionization in GC-MS

    Monday, January 01, 2007
    Application Note
    Chris Sandy Jean-Francois Garnier Bernhard Rothweiler Fred Feyerherm Sihem Ben Mahmoud Harry F. Prest
    Gas chromatography with mass spectrometric detection using chemical ionization (CI) has demonstrated great utility in a wide variety of application areas ranging from forensics to environmental to ... read more

  • Understanding the Links Between Rheology and Particle Parameters

    Wednesday, November 01, 2006
    Technical Article
    Steve Carrington Adrian Hill
    The rheology of a suspension or dispersion relates directly to many parameters of commercial interest. read more
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