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《AOAC 32.2.03A AOAC Official Method 997.06 Protein(Crude)in Wheat》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、32.2.03Alengthresolution,2nm;bandpass[fullwidthathalfheight(FWHH)],AOACOfficialMethod997.066nm.(2)FossGrainspec.—SupportandserviceavailablefromFossProtein(Crude)inWheatDecatorAB,Box70,S-26321,Höganas,Sweden.Instrumentspecifi-WholeGrainAnalysiscations:lightsourceop
2、tics,20Wtungstenhalogenlamp;methodofNear-InfraredSpectroscopicMethoddispersion,bandpassfiltersandfocusingwheel;modeofenergycap-FirstAction1997ture,transmittance;detector,silicon;numberofinterferencefilters,11;numberoffocusingpositionsperfilter,3;wavelengthrange[Ap
3、plicabletowheatcontaining9–16%protein(12%moisture808–1075nm(providesuniformlyspacedreadingsoverwavelengthbasis).]range);wavelengthresolution,8.3nm.(3)PertconInframatic9100.—AvailablefromPertenInstruments,GMBH,SeeTables997.06A–Dforresultsoftheinterlaboratorystudysu
4、p-Grossmootkehre3,D-21079,Hamburg,Germany.Instrumentspec-portingtheacceptanceofthemethod.ifications:lightsourceoptics,8.5Wtungstenhalogenlamp;methodA.Principleofdispersion,bandpassfilters;modeofenergycapture,reflectance;Bymeansoflinearchemometricalgorithms,near-in
5、frareddetector,leadsulfide;dynamicresponse;2.3AU;numberofinter-(near-IR)transmittanceordiffusereflectancespectraareusedastheferencefilters,12;wavelengthrange1077–1372nm;bandpassbasisfordeterminingcrudeproteincontentinbulkwheat.Combina-(FWHH)forfilters,12nm;wavelen
6、gthaccuracy,±2nm;andRMS–5tionandovertonefrequenciesofNH,CH,andOH,whichoccurduenoise,<1´10OD.(4)NIRSystems6500/5000.—Availablefromtopresenceofproteins,carbohydrates,andwaterareofsufficientlyFossNIRSystems,12101TechRd,SilverSpring,MD20904USA.highmagnitudeinnear-IRre
7、gion(850–2500nm)tobemeasuredInstrumentspecifications:lightsourceoptics,75Wtungstenhalo-andquantitativelyrelatedtoproteincontent(compensatedformois-genlamp;methodofdispersion,holographicgrating;modeofen-turecontent).Procedureentailsstandardizingnear-IRinstrument,er
8、gycapture,reflectance;detector,leadsulfide;dynamicresponse,4usingaminimumof20wheats(termedstandardizationsamples)ofAU;scanrange,1100–2498nm;wavelengthre
