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Raman Spectroscopic Method

Raman spectroscopy a spectroscopic technique used to study vibrational, rotational, and other low-frequency modes in a system.  It relies on inelastic scattering, or Raman scattering, of monochromatic light, usually from a laser in the visible, near infrared, or near ultraviolet range.

The laser light interacts with molecular vibrations, phonons or other excitations in the system, resulting in the energy of the laser photons being shifted up or down. The shift in energy gives information about the vibrational modes in the system.

Xantus RAMAN InstrumentFirst Guard RAMAN Instrument

Applications of RAMAN Based Instruments

Raman spectroscopy is commonly used in chemistry, since vibrational information is specific to the chemical bonds and symmetry of molecules. Therefore, it provides a fingerprint by which the molecule can be identified.

The Rigaku Raman instruments we recommend have been used for homeland security, pharmaceuticals, cosmetics industry, food, wine, beer and agricultural feed quality assurance and quality control, medical diagnostics, petrochemical exploration and process control, forensics, archeometry, and many other applications. 

Advantages of RAMAN Method+  can be used with both solids and liquids+  provides a highly specific chemical fingerprint of a material+  samples can be analyzed through glass or a polymer packaging Disadvantages of RAMAN Method-  the RAMAN effect is very weak so detection needs a sensitive and highly optimized instrument -  it can not be used for metals or alloys -  heating from the radiation can possibly destroy the sample

RAMAN based analysis methods offered by Global Scientific Sales include the Xantus, Xantus Mini, and First Guard instruments by Rigaku.

We also offer a wide range of alternative methods of testing including XRF, OES, NMR, FTIR, and VCD.

Feel free to contact us to help you choose the right solution for your application.

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