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Determination

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  • 'Noise thermometry' yields accurate new measurements of Boltzmann constant

    By measuring the random jiggling motion of electrons in a resistor, researchers at the National Institute of Standards and Technology (NIST) have contributed to accurate new measurements of the Boltzmann constant, a fundamental scientific value that relates the energy of a system to its temperature. more

  • Direct determination of bandgap energy of nanocrystals

    An international research group led by Tom Gregorkiewicz, professor at the University of Amsterdam and Yasufumi Fujiwara, professor at Osaka University's Graduate School of Engineering together with his Japanese group at National Institute of Advanced Industrial Science and Technology determined dir more

  • The Innovation Prize Berlin Brandenburg 2012 was awarded to LUM

    The Innovation Prize Berlin Brandenburg 2012 was awarded to LUM GmbH for the new Adhesion Analyser LUMiFrac®. Adhesive and tensile strength of composite materials, multi-layer films and bonded parts are determined online by the award-winning LUMiFrac®. Starting as an idea for a more simple and objec more

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White papers Determination

  • GC-C-IRMS Determination of Hormones

    By amending methodology to utilize eVol® for sample preparation processes for GC-C-IRMS C isotope ratio analysis, the ISORA department has: improved sample preparation conditions and the GC-C-IRMS analysis results by removing the risk of ghost peaks, more

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Definition

Zeisel determination

Zeisel determination The Zeisel determination or Zeisel test is a chemical test for the presence of esters or ethers in a chemical substance . In a qualitative test a sample is first reacted with a mixture of acetic acid and hydriodic aci ... more

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