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  • Determination of Enantiomeric Purity of α-Bromobutyric Acid by HPLC Combined With Pre-Column ...

    Tuesday, February 01, 2011
    Technical Article
    Jia Luo Quanyi Wang Yiwen Zhang Hang Song Shun Yao
    As a common intermediate in the synthesis of numerous pharmaceuticals, a-bromobutyric acid displays chirality at the carbon bound to the bromine. read more

  • 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

  • Evaluation of an Automated Solid-Phase Extraction Method Using Positive Pressure

    Wednesday, April 08, 2015
    Application Note
    Heidi Fleischer Kerstin Thurow Ellen Vorberg Carolin Gallert Thomas Roddelkopf Steffen Junginger
    Investigations for the determination of drugs in real samples, while gaining in importance, are limited by time and sample throughput. In response to this, the authors developed an automated solid-... read more

  • Automated Chromatographic Solid-Phase Extraction Using an Autosampler

    Thursday, September 01, 2016
    Application Note
    Mark Hayward Jonathan Ho Rick Youngblood Matthew T. Hardison Tom Moran Kim Gamble
    Solid-phase extraction (SPE) is a preferred tool for isolating target analytes from complex matrices because the availability of a diverse range of chromatographic sorbents enables targeted approaches... read more
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