校准曲线制作和应用中的几个误区

:100125132(2001)0320064204:2001-06-11.:(1955-),,,,.1,2(,315211;2.,315040):,,,3..:;;:O212;O651:B,(),.,.,,,..??,,,,.,.,[1].,.1,.,?,,,,,,..y=b+axy,y[2]:2=1n[(y-a-bx)2].(xi,yi)a,b.,,,,,a,b.a,ba,b,[3]:2a=2[1n+x2(xi-…x)2]=2x2in(xi-…x)2,14320019()JOURNALOFNINGBOUNIVERSITY(NSEE)Vol.14No.3Sept.2001©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=2(xi-…x)2=n2n(xi-…x)2.,b,,xi,xi,b,,.a,2xi,.,xi,,a..,?..,,.,.,,.,xi,yi,.,?5,xi,yi5.6.,R.2.,,-,,1^yy,,.[3],yiA0:yi=yi-A0.,,,().,,:(1),.x,y,x,x,,.1.x=x0,ys,s[5]:s=s1+1n+(x0-…x)2(x-…x)2.(4)(2),.(3)(),.(4),,,.:(1),563:©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2),,.(3),y=a+bx,,.y=a+bxa.,a.[4].1(x)0.000.0020.0030.0050.0080.012(y)0.060.120.140.270.400.52(z)0.000.060.080.210.340.46,(ab):y=0.04+41.67x.(a)z=-0.02+41.67x.(b),.(a)0.04.0.06,.0.06,,,(b)z=-0.02+41.67x,.(b)-0.02,.,.,.,,.,.,.,,a,,y=bx,b=xy/y2.,yi,A0,yi-A0yi,yixi.,,..,...,,().,.:,,.,.:[1].[J].,1990(3):25.[2].[M].:,1986.[3].[S].:,1991.66()2001©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[4]CaulcuttR,BoddyR.Statisticsforanalyticalchemists[M].London:ChapmanandHallPress,1983.SeveralMistakesDuringMaking&UsingStandardCurvesXUJi2rong1,DAIYou2heng2(1.FacultyofArchitecturalEngineering,CivilandEnvironment,NingboUniversity,Ningbo315040,China;2.CareerCenter,NingboUniversity,Ningbo315040,China)Abstract:Itisrequiredveryoftentomakeastandardcurveduringachemicalanalysis.Itisfoundthatsomemethodsformakingstandardcurvesthatsuggestedbysometextbooksandanalyticalguidesaremisleading.Themistakesisanalyzedwithstatisticsandthecorrectmethodstomakethestandardcurvesaresuggested.Keywords:standardcurve;making;method()200192123(),4050():,,,:,,,,,;()()()()()10,,()763:©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.