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  • Laboratory Automation: 2013–2017

    Friday, November 23, 2012
    Technical Article
    Robert L. Stevenson, Ph.D.
    Laboratory automation is changing the work flow in biochemical and chemical laboratories. read more

  • Environmental and Atmospheric Monitoring Using Off-Axis Integrated Cavity Output Spectroscopy (OA-...

    Friday, November 23, 2012
    Technical Article
    Douglas Baer Manish Gupta J. Brian Leen Elena Berman
    The demands of environmental and atmospheric monitoring continue to grow in terms of the number of sites and types of facilities that are being monitored (fixed, mobile, shipboard, airborne) and the ... read more

  • Pittcon® 2011 Exposition: New Product Introductions in Optical Spectroscopy and Mass Spectrometry

    Monday, May 09, 2011
    Technical Article
    George M. Frame II Eileen M. Skelly Frame
    Of the 979 exhibitors at Pittcon® 2011, held March 13–18 in Atlanta, GA, 115 were first-time exhibitors, and more than 200 identified themselves as having something to do with spectroscopy, from ... 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 New-Generation Microwave Digestion System

    Friday, January 28, 2011
    Application Note
    Carl Chan
    Since the laboratory microwave digestion system first became commercially available in the 1980s, sample preparation has become mainstream, and the preparation of samples for atomic spectroscopy has ... read more

  • 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

  • Efficient Use of Spectral Information Through Multiline Analysis in ICP-AES

    Wednesday, August 01, 2007
    Application Note
    Jean-Michel Mermet Agnès Cosnier Sophie Lebouil Sébastien Vélasquez
    The classical way to conduct the determination of an element in inductively coupled plasma-atomic emission spectrometry (ICP-AES) is to select a single line with adequate sensitivity and that is free... read more

  • Acidic Digestion of Soils to Determine Mercury Concentration

    Friday, June 01, 2007
    Technical Article
    Pamela F. Heckel Tim C. Keener
    Soils are notoriously heterogeneous and difficult to analyze. The authors developed a digestion method to extract mercury from clay soils using relatively inexpensive cold vapor atomic absorption ... read more

  • Lead in Vinegar: Determination and Possible Sources

    Thursday, February 01, 2007
    Application Note
    Kuria Ndung’u Sharon Hibdon A. Russell Flegal
    Exposure to contaminant lead remains a public concern because of its pervasiveness in the environment and increasing evidence of its sublethal toxicities at exposure levels lower than previously ... 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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