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  • Using Raman Spectroscopy for Gemstone Analysis

    Tuesday, June 06, 2017
    Traditional gemstone analysis methods include the scratch test, UV light test, fog test, conductivity test, loupe test, transparency test, heat test, and density test. Read More

  • Bringing Raman Spectroscopy to the Undergraduate Laboratory

    Thursday, January 19, 2017
    Most undergraduate chemistry departments do not have Raman spectroscopy instruments in their instructional laboratories. Cost is a primary reason—a Raman spectrometer is typically in the $100,000 range. The fragility of research Raman instruments is ... Read More

  • UV/VIS/NIR Technology

    Monday, August 08, 2016
    “In an ideal world, spectrophotometers would be capable of measuring the entire electromagnetic spectrum on a single instrument platform, generating a variety of types of information from the sample,” says Ian Robertson, IR/NIR applications ... Read More

  • Lab Technology Face Off: ICP-AES vs. ICP-OES vs. ICP-MS

    Thursday, July 17, 2014
    The specificity of elemental analysis required and the laboratory budget are the biggest considerations in choosing an ICP-OES system over an ICP-MS system. The amount of samples to be tested per day, as well as regulatory testing standards and ... Read More

  • Portable XRF: Nondestructive Testing in Seconds

    Monday, July 01, 2013
    We are all familiar with X-rays, the short, highly energetic waves used by dentists to check for cavities, and by airport screeners to look for contraband. We experience fluorescence—the phenomenon by which something absorbs energy and in turn ... Read More

  • Spectrophotometers Overview

    Tuesday, April 23, 2013
    Spectrophotometers measure the amount of light of a specific wavelength that is absorbed by a sample. A spectrophotometer is used chiefly to measure the concentration of analytes in solutions, but is also used to characterize liquid and solid ... Read More
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