ResourceSpectroscopy
Quantitative Analysis of Acid Value, OH Value and Viscosity in Acrylic Acid Esters using FT-NIR Spectroscopy
1 Aug 2019Acrylic acid esters are formed by the reaction of acrylic acid with alcohols. Hydroxyl value (OHv), acid value (Av) and viscosity (Visco) are commonly used to characterize and certify final acrylic acid ester products. OHv and Av provide an indication on synthesis completion, while Visco allows estimation of the molar mass of the produced monomers. In this application note, ABB Analytical Measurements performs the quantitative analysis of acrylic acid esters by FT-NIR spectroscopy by evaluating the OHv, Av and Visco.
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Near Infrared SpectroscopyNear-infrared (NIR) spectroscopy measures the interaction of near-infrared light with a sample, including transmission, reflectance and absorbance, facilitating the identification of analytes. Measurements can be conducted using a Fourier-transform near infrared (FT-NIR) spectrometer, while there are also UV-Vis- NIR spectrophotometers that measure a broader spectrum of wavelengths. Find the best NIR spectroscopy products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Quality ControlQuality control is needed in all production processes. Quality control is a monitoring procedure or set of procedures that are put in place to ensure that a manufactured product adheres to a defined set of quality criteria. NIRSSpectroscopySpectroscopy is a technique that analyzes the interaction of light with matter to study molecular properties, concentrations, and structural information. Widely used in chemical, pharmaceutical, and environmental analysis, spectroscopy offers insights into molecular composition and helps identify unknown compounds. It plays a key role in quality control, research, and diagnostics. Browse our peer-reviewed product directory to compare spectroscopy tools, read reviews, and get prices directly from manufacturers.