In our November Issue:
COLUMNS
Molecular Spectroscopy Workbench
Raman Analysis of Ethylene Vinyl Acetate Copolymers–Using 2D-COS for Identifying Structural Changes
Fran Adar
Raman 2D-COS spectral data provide information on conformational changes of polymers. Here, Raman spectra of ethylene vinyl acetate and vinyl acetate copolymer are measured and interpreted, enabling a description of morphological changes related to the vinyl acetate group.
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Focus on Quality
Data Quality and Data Integrity Are the Same, Right? Wrong!
R.D. McDowall
Many analysts are confused about the terms data integrity and data quality. This article explores the differences between the terms, and explains how data integrity is an essential part of data quality.
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IR Spectral Interpretation Workshop
Organic Nitrogen Compounds VI: Introduction to Amides
Brian C. Smith
Amides are an important functional group found extensively in polymers and proteins. There are three different families of amides. Here, is explained how to distinguish them using infrared spectroscopy.
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Peer-Reviewed Article
Quantum Cascade Laser Infrared Microscopy and 2D IRCorrelation Spectroscopy Improves Crystallization Screening of a Protein Complex
Sherly Nieves and Belinda Pastrana
Well-diffracting crystals are essential for X-ray diffraction of crystallized protein for structural
determination. A quantum cascade laser (QCL) infrared microscope is used to determine
protein aggregation, distinct from self-association, for the success of the crystallization effort.
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Book Review
Chemometrics in Spectroscopy, 2nd Edition,
by Howard Mark and Jerry Workman, Jr.
Husheng Yang
Chemometrics in Spectroscopy is a collection of column articles that the authors have published over more than two decades. Collectively, the articles form a comprehensive reference for readers wanting to learn chemometrics, especially with its applications in spectroscopy.
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Gaining Operational Efficiencies in Drinking Water Analysis
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Impurities: Compliance Requirements and USP Resources
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What’s the BIG DEAL about Nanoparticles in Water: spICP-MS for Identification and Occurrence in Water Treatment Plants
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Solving Problems When Using FT-IR
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Fingerprinting Sources of Environmental Pollution Using Stable Isotopes: A Focus on Nitrogen
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