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  • 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
  • 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
  • Matrix Degradation Assays for Investigating Cell Invasion

    Tuesday, November 01, 2011
    Application Note
    Jun Ma Luke Armstrong Janet Anderl
    Tumor metastasis, inflammation, and development are accompanied by the invasion of cells through the extracellular matrix. read more
  • The State of Microscopy for 2012

    Tuesday, November 01, 2011
    Technical Article
    Barbara Foster
    In various recent interviews, I’ve been asked about the state of microscopy and, most specifically, the rise of technologies such as AFM (atomic force microscopy) and Raman confocal and the ... 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
  • 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
  • Statistics in Analytical Chemistry: Part 25—Calibration Summary

    Thursday, February 01, 2007
    Technical Article
    David Coleman Lynn Vanatta
    In a modern chemical-analysis laboratory, virtually all of the testing equipment must be calibrated periodically. read more
  • Centrifuge Safety and Security

    Thursday, February 01, 2007
    Application Note
    Tammy Goodman
    For laboratories around the world, increasing health and safety legislation requires that equipment be operated and maintained so that every step is taken to maximize safety and security. read more
  • Reagent-Free Ion Chromatography Systems With Eluent Regeneration: RFIC-ER Systems

    Thursday, February 01, 2007
    Application Note
    Yan Liu Zhongqing Lu Chris Pohl John Madden Navette Shirakawa
    Since the introduction of ion chromatography (IC) in 1975, Dionex Corp. (Sunnyvale, CA) has continued to improve the performance of IC systems while developing new capabilities for the determination ... read more
  • The Nanoliter Syringes

    Thursday, February 01, 2007
    Technical Article
    Andrew D. Sauter
    Following an informal collaboration with Affymax (Palo Alto, CA), Agilent Technologies (Palo Alto, CA), and Chem-Space Associates (Pittsburgh, PA), studying electrospray ionization 1 (ESI), the ... read more
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