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  • 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

  • Fast and Effective LC/MS/MS Analysis of Synthetic Cannabinoids

    Wednesday, February 08, 2012
    Technical Article
    Sky Countryman Erica Pike Michael Rummel Matthew Trass Jeff Layne
    Synthetic cannabinoids are attracting increasing attention from the drug testing industry because of a sudden surge in the abuse of these compounds. read more

  • Rapid, Robust, and Sensitive Detection of 11-nor-Δ9-Tetrahydrocannabinol-9-Carboxylic Acid in ...

    Thursday, September 01, 2011
    Technical Article
    Bernhard Rothweiler Fred Feyerherm David Engelhart Stephan Baumann
    Testing hair for drugs of abuse has been practiced for over 50 years, due in large part to the ability to detect drug use over a longer period of time, as compared to other biological matrices, ... read more

  • Identification of Volatile and Semivolatile Organic Compounds in Salt Lake Brine

    Thursday, September 01, 2011
    Technical Article
    Qianqian Song Bin Xu Xinning Li Wu Li Guimin Qian
    The deposited salts and brine from salt lakes are important industrial resources for many kinds of salts, such as edible salt, potassium, boron, lithium, and a few heavy metals. 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

  • Fritless Chromatographic Microfluidic-Based Columns for Chemical Separations

    Monday, October 27, 2008
    Technical Article
    Frank A. Gomez Attila Gaspar Shima Baghdachi Mark Goldberg Schetema Stevens Jaime Torres Marisol Salgado
    The development of microfluidic chips and devices offers a number of advantages over conventional analytical techniques, including small sample volume requirements, portability, fast sampling times, ... read more

  • Automation of Solid-Phase Extraction for Urinary Opiate Analysis

    Friday, October 24, 2008
    Technical Article
    Jeffery Hackett Michael J. Telepchak Michael J. Coyer
    The identification and confirmation of opiates extracted from biological matrices such as blood, plasma/serum, and urine may often lead to more questions than answers, as many exponents of forensic ... read more
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