ResourceSpectroscopy
Accurate Characterization of Polymers and Additives in Personal Care Products and Packaging by Fast-Scanning IR
23 Jan 2013Most items bought today come in some sort of packaging, from blister packs and filled polymers, to biodegradable bags. These plastics need to be characterized and classically this is done by physical and optical tests or chromatographic techniques. This application note demonstrates how Infra-red spectroscopy can been utilized to scan samples in either transmission or reflectance using an ATR accessory, such as the Buck Scientific M500 IR Spectrometer with a Thin-Film Holder to qualitatively identify and quantitatively measure the relative composition of major polymers and additives used in manufacturing.
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Infrared / IR SpectroscopyInfrared (IR) spectroscopy measures the interaction of infrared light with a sample, including transmission, reflectance & absorbance, facilitating the identification of analytes. Equipment used for quantitative analysis includes Fourier-transform infrared (FTIR) spectrometers, infrared cameras, FTIR gas analyzers, as well as attenuated total reflectance (ATR) accessories and pellet or film presses. Find the best IR spectroscopy products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Attenuated Total ReflectanceSpectral ScanningPolymersPolymers are large molecules made up of many repeat units. Natural polymers such as DNA and proteins are essential to life, whereas synthetic polymers such as polystyrene and polyethylene are used widely due to their functionality. Typical techniques for analysis include GPC, SEC, DSC, FT-IR and NMR.