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  • Sample Processing at Pittcon® 2014

    Tuesday, May 06, 2014
    Application Note
    Robert L. Stevenson, Ph.D.
    The tenfold increase in speed for the analytics (GC, HPLC, and SFC [supercritical fluid chromatography], all with MS) over the last decade has shifted the choke point in many workflows from analytics ... read more

  • Bottle Liquid–Liquid Extraction Update: In Situ Water Sample Preparation

    Tuesday, January 21, 2014
    Application Note
    As first described in Ref. 1, an alternative liquid–liquid extraction technique was originally conceived, born, and cultivated in an environmental lab setting to enable holding time obligations to be ... read more

  • Sample Prep for LC, GC, and SFC at Pittcon® 2013

    Friday, May 10, 2013
    Technical Article
    Robert L. Stevenson, Ph.D.
    At Pittcon® 2013, sample prep stood out as a major focus, perhaps because of the few advances in chromatography instrumentation. In addition, some sample preparation is spilling over into other ... read more

  • Chemicals are Back!

    Friday, December 07, 2012
    Technical Article
    Robert L. Stevenson, Ph.D.
    The tsunami on the business horizon is the resurrection of the American chemicals industry. read more

  • HPLC 2012: New Mysteries in Column Efficiency

    Monday, October 01, 2012
    Technical Article
    Robert L. Stevenson, Ph.D.
    HPLC is the premier meeting series for liquid chromatographers to gather to learn about the latest advances in technology and applications. read more

  • New Instrumentation and Applications at HPLC 2012

    Friday, August 10, 2012
    Technical Article
    Robert L. Stevenson, Ph.D.
    A marketplace is usually dynamic, with a cross-current of disparate interests meeting to find mutual satisfaction. read more

  • Highlights of the Fifth International Symposium on Packed Column SFC

    Tuesday, August 23, 2011
    Technical Article
    Larry Miller Larry Taylor
    The Fifth International Symposium on Packed Column SFC (SFC 2011), which alternates between the United States and Europe, was held in New York City, July 20–22, 2011. read more

  • General Laboratory Equipment: Innovation Showcase

    Monday, May 09, 2011
    Technical Article
    Jeanely Hunt, MS, MBA
    Each year, manufacturers and distributors flesh out many innovations for the laboratory, ranging from simple accessories to large, more complex instrumentation. 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

  • A Membrane Extraction Technique Dedicated to Industrial Wastewater: Membrane-Assisted Solvent ...

    Tuesday, January 01, 2008
    Application Note
    Carole Vincelet David Benanou Jean Marc Roussel
    The use of membrane materials for the extraction of organic compounds has increased during the past few years for the extraction of analytes in bioanalysis and environmental, food, and industrial ... read more

  • Increased Throughput in Method 8270 Analysis

    Monday, January 01, 2007
    Application Note
    William D. Goodman Frank DeLorenzo
    Method 8270 is a GC-MS method created by the U.S. EPA Office of Solid Waste for the analysis of semivolatile organics by gas chromatography-mass spectrometry. read more

  • Automated Chemical Ionization in GC-MS

    Monday, January 01, 2007
    Application Note
    Chris Sandy Jean-Francois Garnier Bernhard Rothweiler Fred Feyerherm Sihem Ben Mahmoud Harry F. Prest
    Gas chromatography with mass spectrometric detection using chemical ionization (CI) has demonstrated great utility in a wide variety of application areas ranging from forensics to environmental to ... read more

  • Influence of Sample Preparation on the Assay of Phytochemicals

    Wednesday, March 01, 2006
    Technical Article
    Devanand L. Luthria
    Sample preparation is often considered a means to an end. read more
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