Article Archives

Filter

Hide Filter

  • Micro RNA Profiling with a Multiplexed Assay

    Monday, March 03, 2014
    Application Note
    Mark Santos
    From the discovery of new miRNAs to clarifying their biological roles and utility as biomarkers, micro RNA (miRNA)-based research is undergoing a period of change. Rigorous methods are therefore ... read more

  • 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

  • Innovations in Optical Dissolved Oxygen Sensors

    Monday, March 05, 2012
    Application Note
    Robert Hengel Klaus Reithmayer
    This article discusses the limitations associated with conventional electrochemical oxygen sensors and introduces a new technology that provides a viable solution for fast, accurate, and reliable ... 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

  • 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

  • Managing Laboratory Maintenance

    Tuesday, February 07, 2006
    Application Note
    L. Wayne Collins
    Other than personnel-related costs, maintenance is generally the most expensive item in the laboratory operating budget. read more

  • Defragmenting Chiral Chromatography

    Wednesday, February 01, 2006
    Application Note
    Regina Valluzzi Benjamin Chaloner-Gill
    Chiral molecules continue to drive growth across a number of industries as new chemistries, active ingredients, and products are developed and commercialized. read more

  • Reflections on a Third-Generation Mobile Phase Recycler for HPLC

    Wednesday, February 01, 2006
    Technical Article
    Al Welch
    The volume of HPLC mobile phase (MP) purchased and discarded each year is about 20,000,000 L, or enough to fill two rail trains each with 100 tank cars. On average, each of the 200,000 active HPLCs... read more

  • Statistics in Analytical Chemistry: Part 20—Recovery Curves

    Wednesday, February 01, 2006
    Technical Article
    David Coleman Lynn Vanatta
    In Part 19 of this series (American Laboratory Dec 2005), the use of an internal standard (IS) was discussed and an example was given. read more

  • Dynamic Light Scattering For the Noninvasive Detection of Protein Aggregation

    Wednesday, February 01, 2006
    Application Note
    Bernard Lorber
    Protein homogeneity is an important issue in many fields of research, be it the characterization of newly isolated molecules, the identification of crystallizable samples, or the preparation of ... read more

  • Single-Step Purification of Lactase From a New Isolate of L. acidophilus

    Wednesday, February 01, 2006
    Application Note
    Sameer K. Akolkar Smita S. Lele
    Lactase (ß-D-galactohydrolase EC 3.2.1.23) is widely distributed in microorganisms, plants, and animals. read more
  • <<
  • >>