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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

  • 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

  • Simultaneous Crystallization Testing in a Laboratory Furnace

    Thursday, June 16, 2011
    Application Note
    Branislav Cabric Nebojsa Danilovic Aco Janicijevic
    A previous paper described a model of an air-cooled test tube with a series of sockets and plugs (crystallization socket-outlet adaptor) installed in a laboratory chamber furnace, the goal of which ... read more

  • Taking Thermogravimetric Analysis to a New Level of Performance and Convenience

    Tuesday, January 03, 2006
    Technical Article
    George Dallas
    Thermogravimetric analysis (TGA) is an established technique for studying the thermal stability of materials and for determining and understanding their decomposition profiles. read more

  • A Multifrequency Temperature-Modulated Technique For DSC

    Sunday, January 01, 2006
    Application Note
    Markus Schubnell Christoph Heitz Thomas Hütter Steven Sauerbrunn Juergen E.K. Schawe
    In conventional differential scanning calorimetry (DSC), a sample is subjected to a temperature program with a constant heating rate. As a result, the DSC instrument delivers an output signal, which, ... read more
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