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  • Working Flow Rate: How to Compare Vacuum Pumps

    Friday, May 17, 2013
    Application Note
    Peter Coffey
    To compare vacuum pumps, it is imperative to look at the pumping speed at working vacuum levels. The working vacuum level is the vacuum at which you need to operate your application. Comparing the ... read more
  • Product Intelligence: Homogenizers Buyers’ Guide

    Monday, August 06, 2012
    Technical Article
    T. Keith Brock
    The mechanical, pressure, and ultrasonic homogenizer represent the three primary methods used to blend, mix, disrupt, emulsify, disperse, and stir samples. This article explains the role of ... read more
  • Product Intelligence: Laboratory Vacuum Pump Buyers' Guide

    Monday, July 16, 2012
    Technical Article
    Emily S. Tozzi
    Chemistry and life science laboratories utilize lab vacuum pumps for applications such as providing suction to drive the aspiration or filtration of liquid or suspended samples, and inducing or ... read more
  • A Nondestructive Technique for the Detection of Metallic Impurities in Alloys

    Tuesday, September 01, 2009
    Application Note
    John R. Dannecker Neil D. Fichtelberg Scott A. Knowles
    Examples of welds contaminated with small quantities of incorrect weld filler metal were recently discovered in fabricated assemblies. The presence of such impurities, which are not detectable using ... read more
  • 1-mm-i.d. Monolithic HPLC Columns for High-Efficiency Protein Separations

    Tuesday, September 01, 2009
    Application Note
    Sebastiaan Eeltink Remco Swart
    The preparation of monolithic separation media for HPLC composed of a single, continuous polymer macroporous support has been reported since the late 1960s. Due to its unique material properties, ... read more
  • LIMS and Public Health

    Tuesday, September 01, 2009
    Technical Article
    William Qualls
    The current H1N1 flu pandemic has put a spotlight on public health agencies as they work to identify and contain the outbreak. read more
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