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DetectingtotalphosphateinwaterwiththeinstrumentHACHChenGuomei(SewageTreatmentPlantoftheNantongEconomic&TechnologicalDevelopmentDistrict,Nantong226009,China)HACH(,226009)[]HACH。(GB11893—1989),,:2(0.05,15),,。[];;t[]X832[]B[]1005-829X(2010)03-0062-02Abstract:TheinstrumentHACHhasbeenusedfordeterminingthetotalphosphateinwater.TheresultsareanalyzedbycontrastingwiththeNationalStandardGB11893—1989andapplyingsymbolicstatisticsmethod.Theresultsshowthattherearenotanyremarkabledifferences(αis0.05andthenumberofexampleis15).Bothofthemhavesimilaraccuracyandpreciseness.Thereforethetwoarereplaceable.Keywords:totalphosphate;spectrophotometry;ttest-,,-、,,。,HACH,,。,,,。11.11+1,100g/L,,50mg/L(P),50g/L〔1〕。1.2DRB200,HACH;DR/2100,HACH。1.31.3.15.00mL250mL,,1.0mg/L,。1.3.27HACH,0、0.5、1.0、2.0、3.0、4.0、5.0mL,5mL,0.80mL,,,120℃30min。,0.20mL,,30s0.40mL,15min,700nm,。1。1,C=9.1674A+0.0183,R2=1.000。1.3.3(5μg),5mL。、。30320103IndustrialWaterTreatmentVol.30No.3Mar.,20101/(mg·L-1)/(mg·L-1)000.60.3210.10.0530.80.4350.20.1061.00.5460.40.21562——2010-03,30(3):HACH,。GB11901—1989、GB11903—1989〔1〕。22.1,4(2),6(2),2。2.212,,4,,3。3,SS1112,,SS。。2.32.3.12t,σ1=σ2(σ)。H0:μ1=μ2(),μ;x1=1.11,x2=1.01,x();S12=0.962=0.9216,S22=0.822=0.6724,S;f=n1+n2-2=8,n,n1=4,n2=6;t=(x1-x2)[n1n2f/(n1+n2)]1/2[(n1-1)S12+(n2-1)S22]-1/2=0.1770:α0.05,8t0.05(8)=2.306。|t|=0.1770<2.306=t0.05(8),H0,2。,2t:|t|=0.2053<2.306=t0.05(8),H0,2。,,,。2.3.23t。H0:μ1=μ2(),μ。3(xi)(yi)。d=[∑(xi-yi)]/n=0.094(n,n=10);Sdi={[∑di2-(∑di)2/n]/(n-1)}1/2=0.2596;Sd=Sdi/n1/2=8.21×10-2;f=n-1=9t=(|d|-0)/Sd=1.145:α=0.05,9t0.05(9)=2.262,|t|=1.145<2.262=t0.05(9),H0,2。3(1),≤512,2,(SS),SS50mg/L,。(2),-7.78%~3.21%。(3),,(GB11893—1989)2(0.05,10),,。[][1].[M].4.:,2002:244-248.2/%/(mg·L-1)/%11.10、1.12、1.11、1.101.110.96-9.011.02、1.02、1.02、1.01、1.01、1.001.010.8223.21、3.24、3.26、3.223.232.22-6.503.02、3.03、3.02、3.04、3.01、3.023.021.03:,。3/%/%13.343.08-7.7877.406.96-5.9524.784.902.51815.616.13.2139.359.20-1.6097.237.242.6345.345.10-4.49101.641.57-4.2758.167.95-2.571110.5616.216.0-1.231213.1/(mg·L-1)xiyi/(mg·L-1)xiyi:2、4、5,64、512、256;11、12213、143mg/L,50mg/L。[](1976—),2000,。:0513-83594905804,E-mail:cgm7696@yahoo.com.cn。[]2009-10-20()63——
本文标题:HACH仪器测定水中的总磷陈国梅
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