Article Archives

Filter

Hide Filter
  • Pittcon 2013®: Developments in Liquid Chromatography

    Pittcon 2013®: Developments in Liquid Chromatography

    Monday, May 13, 2013
    Technical Article
    Robert L. Stevenson
    The first commercial liquid chromatograph was probably an amino acid analyzer. These ion exchange chromatographs were so specialized that they had almost no impact on chemical analysis outside of ... read more
  • Laboratory Automation: 2013–2017

    Laboratory Automation: 2013–2017

    Friday, November 23, 2012
    Technical Article
    Robert L. Stevenson
    Laboratory automation is changing the work flow in biochemical and chemical laboratories. read more
  • Drying of Problematic Purification Samples by Lyophilization in a Centrifugal Evaporator

    Drying of Problematic Purification Samples by Lyophilization in a Centrifugal Evaporator

    Monday, June 13, 2011
    Application Note
    Induka Abeysena, Rob Darrington
    Lyophilization is often the preferred method of sample drying because a high level of dryness is achieved with low residual solvent levels, and because of the light, powdery, “fluffy” finish of the ... read more
  • Analysis of Piperine in Peppers Using On-Line SFE-UHPLC With Photodiode Array Detection

    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
  • Determination of Mercury in Slag and Cement Using a Mercury Analyzer

    Determination of Mercury in Slag and Cement Using a Mercury Analyzer

    Friday, January 28, 2011
    Application Note
    Sang-Ho Nam, Yu-Na Kim, Jin-Su Na, Keun-Hyeok Yang
    Mercury is one of the most toxic elements in the environment. Humans are exposed to mercury through the inhalation of mercury vapor, ingestion of drinking water, and consumption of fish. read more
  • Reintroducing Countercurrent Chromatography to the Chemist

    Reintroducing Countercurrent Chromatography to the Chemist

    Friday, October 24, 2008
    Application Note
    David Keay, Philip Wood
    Ever since chemists began using separating funnels to isolate compounds by partitioning, they have understood the potential benefits of liquid/liquid chromatography, known today as countercurrent ... read more
  • <<
  • >>