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  • Use of qPCR to Detect Biomarkers for Assessing Stem Cells

    Use of qPCR to Detect Biomarkers for Assessing Stem Cells

    Saturday, October 01, 2011
    Technical Article
    Jaime Sabel
    In the human body, undifferentiated stem cells are the raw material used to repopulate tissues and organs in response to accidental cell death or normal cell turnover. read more
  • Drying of Problematic Purification Samples by Lyophilization in a Centrifugal Evaporator

    Drying of Problematic Purification Samples by Lyophilization in a Centrifugal Evaporator

    Monday, June 13, 2011
    Application Note
    Induka Abeysena, Rob Darrington
    Lyophilization is often the preferred method of sample drying because a high level of dryness is achieved with low residual solvent levels, and because of the light, powdery, “fluffy” finish of the ... read more
  • Increased Throughput in Method 8270 Analysis

    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

    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
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