Quality Control of Shampoo
Applications | 2020 | Metrohm Instrumentation
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Quality Control of PET
AN-NIR-023Quality Control of PETDetermination of diethylene glycol, isophthalic acid, intrinsic viscosity, and acid numberwithin one minute with NIRSSummaryDetermination of the diethylene glycol content, isophthalic acid content, intrinsic viscosity(ASTM D4603), and the acid number (AN) of polyethylene terephthalate (PET) is a...
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Quality Control of Polyamides
AN-NIR-060Quality Control of PolyamidesDetermination of viscosity, functional groups, and moisture within one minute using NIRSpectroscopySummaryFunctional group and viscosity analysis (ASTM D789) of polyamides can be a lengthy andchallenging process due to the sample’s limited solubility.This application note demonstrates that the...
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Quality control of Ammonium Nitrate
AN-NIR-064Quality control of Ammonium NitrateRapid and non-destructive moisture determinationSummarySpecialty chemicals have to fulfill multiple quality requirements. One of these qualityparameters, which can be found in almost all certificates of analysis and specifications, is themoisture content. The standard method for the...
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Quality Control of Silicone rubber
AN-NIR-084Quality Control of Silicone rubberFast determination of vinyl content without chemicalsSummaryDetermination of the vinyl content of silicone rubber is a lengthy and challenging process. First,the vinyl groups must be converted to ethylene by reacting with an acid, followed by thedetermination...
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