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  • Analysis of Piperine in Peppers Using On-Line SFE-UHPLC With Photodiode Array Detection

    Tuesday, February 01, 2011
    Application Note
    Takayuki Yamaguchi Kazutoshi Kamezawa Keijin Iwaya Yasuyo Sato Toshihiko Miyaji Masao Bounoshita David J. Tognarelli Muneo Saito
    Ultrahigh-performance liquid chromatography (UHPLC) is a separation technique that utilizes columns packed with microparticles (<2 µm in diameter), as provided by the xtreme liquid chromatography (x-lc™) system (jasco corp., tokyo, japan) µm="" in="" diameter),="" as="" provided="" by="" the="" xtreme="" liquid="" chromatography="" (x-lc™)="" system="" (jasco="" corp.,="" tokyo,="">... read more

  • Expanding the Limits of Closed- Vessel Microwave Sample Preparation

    Thursday, August 10, 2006
    Technical Article
    Kenneth J. Borowski Charles Schoenfeld
    Analytical chemists have long known that closed-vessel microwave sample preparation techniques are the most reliable way to achieve high-quality digestions—i.e., clear, precipitate-free solutions... read more

  • Pressure Digestion or Microwave Pressure Digestion for Sample Preparation?

    Tuesday, August 01, 2006
    Application Note
    Dieter Gutwerk
    Element determination in solids is a multiple-stage process comprising sampling, mechanical sample preparation, and acid digestion procedures that completely convert the analytical materials into ... read more

  • A High-Throughput Device for Processing Samples on Solid Supports

    Saturday, April 01, 2006
    Technical Article
    O. Mitch Griffith
    Crime statistics now support the effectiveness of aggressively analyzing breaking-and-entering cases and developing genotype databases of these felons. read more
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