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  • Analysis of Protosappanin B in Sappan Lignum by Capillary Zone Electrophoresis

    Tuesday, September 23, 2014
    Application Note
    Luzhi Sui Xiangqian Hou Xinmin Li Dunqing Wang
    Sappan Lignum, the dried heartwood of Caesalpinia sappan L, has been used as an herbal medicine since ancient times. Sappan Lignum promotes blood circulation; removes blood stasis; reduces swelling, ... read more

  • Advancements in Instrumentation for Viscosity Measurements

    Wednesday, August 28, 2013
    Technical Article
    Robert G. McGregor
    The electronics revolution within the instrumentation industry has continued at an extraordinary pace, as can be seen with the many recent improvements in display technology and “smart” operating ... 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

  • Optimizing HPLC Sample Preparation

    Monday, February 06, 2012
    Technical Article
    Caitlin Smith
    Sample preparation is an important component for analysis in high-performance liquid chromatography (HPLC)/ultra high-performance liquid chromatography (UHPLC). This article outlines commonly used ... read more

  • Controlling Transformer Aging With Interfacial Instrumentation and Viscometers

    Friday, January 28, 2011
    Application Note
    Armin Hofmann
    High-power transformers are some of the most important elements in the supply of energy. 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
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