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  • Increased IEF Throughput Using a Dual-Electrode Assembly

    Tuesday, August 02, 2011
    Application Note
    Gary B. Smejkal Darren J. Bauer
    An isoelectric focusing (IEF) apparatus capable of operating at 12,000 V maximum voltage enables isoelectric focusing of proteins in immobilized pH gradients (IPGs) to be completed in less than 3 hr. read more

  • Applications of PTR-MS in Medicine and Biotechnology

    Tuesday, June 14, 2011
    Technical Article
    Wolfgang Singer Jens Herbig Rene Gutmann Klaus Winkler Ingrid Kohl Armin Hansel
    Proton transfer reaction-mass spectrometry (PTR-MS) is a well-established analytical tool for the measurement of volatile organic compounds (VOCs), and offers real-time detection and ... read more

  • Accurate Determination of Amino Acids in High-Carbohydrate-Containing Samples

    Sunday, October 01, 2006
    Technical Article
    Valoran P. Hanko Jeffrey S. Rohrer
    In a high-sensitivity amino acid analysis (AAA) technique that does not require sample derivatization, both amino acids and carbohydrates are separated by high-performance anion-exchange ... read more
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