Article Archives

Filter

Hide Filter
  • 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
  • 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
  • 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
  • <<
  • >>