Service: Portable Sequentially Shifted Excitation Raman Analysis (785 & 852 nm)
Platforms
Molab
Techniques
Micro-raman spectroscopy
Organization
Service contact persons
Raman spectroscopy is a molecular vibrational spectroscopic technique that provides information on materials composition. It is ideal for inorganic, organic, and mixed materials.
Raman Spectroscopy offers a powerful method for determining chemical structures and identifying compounds through vibrational spectroscopy. This technique is ideal for the qualitative analysis of mixed materials, including both organic and inorganic substances. It is widely used to identify organic molecules such as polymers, natural dyes, and synthetic dyes, as well as to analyze inorganic compounds found in pigments, corrosion products, and minerals. Additionally, it is effective in detecting different forms of carbon, such as diamond, graphite, or amorphous carbon. The Portable Sequentially Shifted Excitation Raman Spectrometer offered by CNR-INO enhances analysis capabilities with its dual-laser system (785 & 852 nm). Its advanced algorithm produces Raman spectra with minimal fluorescence interference and an exceptional signal-to-noise ratio. This portable instrument enables precise in situ spot analysis directly on the surface of objects, requiring no sample preparation. Measurements can be performed in various orientations, whether vertically or horizontally, ensuring versatility and efficiency in material characterization.
Fluorescence (some materials can induce fluorescence that is much more intense than Raman signals. Typically not quantitative. Green and blue pigments are difficult to analysed and might not produce relevant results.
Fields of application
Chemistry
Conservation (discipline)
Conservation science (cultural heritage discipline)
Heritage science (cultural heritage discipline)
Optics
Physics
Materials
Synthetic inorganic pigment
Inorganic pigment
Natural inorganic pigment
Synthetic dye
Vegetable dye
Dye
Corrosion (residue material)
Polymers
Biopolymers
Cotton (textile)
Silk (textile)
Wool (textile)
Color (pigment)
Other information
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Input: high-resolution image of the object to be analyzed, a report regarding previous analysis performed on the object as a reference, and information regarding the object (date, author, etc.)
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Output: spectra in *.txt, *.spa formats, report, images in *.tiff format, metadata.