Analysis of copolymer levels in polymer pellets by near-infrared spectroscopy
Applications | | MetrohmInstrumentation
NIR Spectroscopy
IndustriesMaterials Testing
ManufacturerMetrohm
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Analysis of polymers using near-infrared spectroscopy
|Metrohm|Guides
Application Bulletin 414 Analysis of polymers using near-infrared spectroscopy Branch Plastics and polymers Keywords Near-infrared spectroscopy, polymer, monomer, polymerization, polypropylene, polyethylene, PET, polyuethane, polystyrene, resin, polyols, polyesters, polyolefin, hydroxyl number, hydroxyl value, acid value, density, melt flow index, melt flow…
Key words
nir, nirindicate, indicateequivalent, equivalentspectroscopy, spectroscopysampling, samplingsummary, summarymonitor, monitorrecommended, recommendedxds, xdsresults, resultsnirs, nirspolymer, polymerinfrared, infraredused, usednear
Determination of additives in polymer pellets by near-infrared spectroscopy
|Metrohm|Applications
Near-Infrared Spectroscopy Application Note NIR–4 Determination of additives in polymer pellets by near-infrared spectroscopy This Application note shows that NIR spectroscopy is an excellent tool for determining low levels of additives in finished polypropylene pellets. This is demonstrated by monitoring…
Key words
pathlength, pathlengthvariations, variationsnir, nirpellets, pelletsspectroscopy, spectroscopydifferences, differencesspectral, spectralbands, bandsnonhomogeneous, nonhomogeneouspured, puredinfrared, infraredmodels, modelshopper, hopperdescription, descriptionobscures
NIR prediction of solid dosage form dissolution profile
|Metrohm|Applications
Near-Infrared Spectroscopy Application Note NIR–17 NIR prediction of solid dosage form dissolution profile This Application Note shows that NIR prediction of the dissolution profile of intact tablets provides a fast and accurate means of nondestructively assessing tablets that is in…
Key words
dissolution, dissolutiontablets, tabletsatbc, atbcnir, nirinfrared, infraredprediction, predictionacetyltributyl, acetyltributyldosage, dosagenear, neartesting, testingprofiles, profilesnirs, nirsvision, visionbands, bandssquares
Near-infrared analysis of polyols
|Metrohm|Applications
Near-Infrared Spectroscopy Application Note NIR–6 Near-infrared analysis of polyols This Application Note describes a fast, nondestructive, and reliable NIRS method for the determination of the hydroxyl number in polyols. Results are available in real-time, for which reason NIRS is highly…
Key words
hydroxyl, hydroxylpolyols, polyolsnumber, numbernir, nirpolyol, polyolend, endoxides, oxidesxds, xdssecondary, secondarynirs, nirsprimary, primarygroups, groupsinfrared, infraredamines, aminesmoisture