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Determination of hardwood/softwood content in wood products by near-infrared spectroscopy

 

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Application Bulletin 412 Analysis of pulp and paper using near-infrared spectroscopy Contents Branch Pulp and paper No. 1: Determining the percentage of softwood in pulp samples................................................................................2 Keywords Near-infrared spectroscopy, paper, pulp, determination, kappa number, resin content. moisture No. 2: Determining…
Key words
nir, nirpulp, pulprapidcontent, rapidcontentxds, xdsnirs, nirspaper, papersolids, solidsanalyzer, analyzerindicate, indicatekappa, kappasummary, summaryspectroscopy, spectroscopyrecommended, recommendedsampling, samplingmonitor
Analysis of lignin in wood pulp
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Near-Infrared Spectroscopy Application Note NIR–8 Analysis of lignin in wood pulp This Application Note describes how NIR spectroscopy can be used to determine the residual lignin content in wood pulp. Using the major absorbance peaks of both lignin and cellulose…
Key words
lignin, ligninpulp, pulppaper, papernir, nirhardwood, hardwoodvariations, variationssoftwood, softwoodabsorbance, absorbancecakes, cakesimpractical, impracticalrealtime, realtimeerroneous, erroneousreproduce, reproducebackground, backgroundcorrections
NIR Application Note NIR-39 Vis-NIR spectroscopic analysis of wood pulps for multiparameter prediction This Application Note shows that visible near-infrared spectroscopy (Vis-NIRS) can simultaneously determine six pulp parameters (kappa number (titration), applied density (densimeter), pulp freeness (CSF), breaking strength (SCT),…
Key words
strength, strengthfreeness, freenesssecv, secvkappa, kappanumber, numberbuckling, bucklingfactors, factorsvis, vissec, sectensile, tensilepulp, pulppulps, pulpsnirs, nirswood, woodbreaking
NIR Application Note NIR-36 Moisture content and pH value in crude tall oil (CTO) This Application Note shows that near-infrared spectroscopy (NIRS) can simultaneously determine water content and pH value in crude tall oil samples (CTO). This technology is a…
Key words
nirs, nirssev, sevtall, tallmoisture, moistureregression, regressioncontent, contentxds, xdsspectroscopy, spectroscopysep, sepwood, woodwavelength, wavelengthmodel, modelinfrared, infraredcrude, crudeconiferous
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