Sigma-Aldrich Library of Raman Spectra
Raman scattering is used in biomedical research, pharmacology, metabolomics, and more. In order to give researchers the ability to investigate the chemical composition and fingerprint of a vast range of both liquid and solid materials. Raman Spectroscopy is a non-invasive, non-destructive technique that offers many advantages, including handling a wide range of sample types with minimal sample processing, ability to couple to optical fibers and combine with microscopy for spatial resolution, and providing quantitative biomolecular information.
Sigma-Aldrich Library of ATR-IR Spectra
Attenuated total reflection (ATR) sampling technique when coupled with IR has revolutionized solid and liquid testing by providing faster sampling rates, improved sample-tosample reproducibility, and minimized user to user spectral variation allowing for more precise material verification and identification. ATR-IR spectroscopy is optimal for testing solids like paints, plastics, and rubbers, as well as viscous liquids and biological materials. With strong advantages such as minimal sample preparation and analysis of samples in their native state, ATR-IR can be a valued technique in obtaining chemical images of pharmaceutical tablets for pharmacological research, analysis of automotive paint in forensics, determination of trans fat content in manufactured food products, and more.
Sigma-Aldrich Library of FT-IR Spectra
The data collection speed of FTIR analysis makes it the method of choice for identification of unknown materials and confirmation of production materials. While the sensitivity and spectral quality empowers many advanced research applications. Benefits of this sampling technique are evident in the reproducibility of data, and ease of maintenance and use. FTIR offers both qualitative and quantitative analysis of a wide range of organic and inorganic samples. Applications can include monitoring air quality to address environmental concern, identify drugs in forensics and molecular degradation assessment of polymers.
13C NMR of Organic Compounds 2014, 2nd Edition
Wolfgang Robien, February 2014
1H NMR of Organic Compounds 2014
Alexander Yarkov, October 2014