紫外分光光度法测定水中油含量

284Vol.28,No.4200211JournalofDalianMaritimeUniversityNov.,2002:100627736(2002)0420068204X,,(,116026):.-,256nm,,,,..,.:;;:U657.32:A0引言,,.GBPT16488-1996[1].,,,.1实验部分1.1,[2],.-A=Ebc,A;E;c;b.1.2JASCOV2550(1cm);100mL;20mL;100mL;50mL.(60~90e):,225nm,80%.60~10070~120150~160e4h,2.5cm75cm,60cm,5cm.60~90e,,[3].(1+3)1(1000mgPL):100mg,,.100mL,,;(50mgPL):5mL100mL,,.1.3.250~X:20022082301:(19792),,,,.260nm,225256nm,215~230nm,..,,:,,..11225nm256nm,,,225nm85%,256nm100%,/,0,256nm.1.4,,.,..,,..,,,.,,/0.1.510.0,20.0,30.0,40.0,50.0mgPL.1cm,,,1.1123456CP(mgPL)010.020.030.040.050.0A0.00110.13720.27610.40870.54570.68262,/0,,21A=bC+a=0.0136C+0.0019r=0.99982实验结果与讨论2.1,,3mL20mL,10mL,2min,,..,50mL.,10mL694,:,,,.,79.30?0.10mgPL.2.2,[4].CL=3Sbb=0.03mgPL,Sb;b.2.3,,,,,.,.JASCOV-550,,2.2,,3%,97%~101%,,0.3%.2.4UV-42,,100mgPL,10.0,20.0,30.0,40.0,50.0mgPL.,(A)(C).4mL,100mL.,,25mL,,.2n123CP(mgPL)10.020.030.0CiP(mgPL)(i=6)9.759.769.769.789.809.8220.2620.2820.2720.2920.2920.3029.3829.3929.4329.4129.4729.46Ci=ECii9.7820.2829.42s=E(Ci-Ci)2i-10.02720.01480.0369CV=sCi@100%0.272%0.074%0.125%E=Ci-Ci0.220.280.58RE=ECi@100%2.2%1.4%1.9%Sr=Es2nn010813123456P(mgPL)UV4.024.054.094.014.084.024.045IR3.983.924.054.053.984.054.00570283,.Ft,.3结束语,,,3%,97%~101%.,0.3%.0.03mgPL.,.,,.:[1].-[M].:,2001.6472654.[2],.GC2FTIR[J].,1994,14(1):37241.[3].[M].:,1990.3392347.[4].[M].:,1990.22223.Studyofmeasurementofoil2in2waterusingUVspectrumPANGYan2hua,DINGYong2sheng,GONGWei2min(EnvironmentalScience&Eng.College,DalianMaritimeUniv.,Dalian116026,China)Abstract:Theanalyticalstudyofoil2in2waterusingUVspectrometrywasintroduced.BasedonthelawofLambert2BouguerandBeer,wegotalinearregressionequationbyusingtheleast2squaredmethod.Thede2tectionwavelengthwassetat256nm.Thedetectionlimit,accuracyandprecisionwerealsoinvestigatedthroughaseriesofexperiments.Furthermore,wetookanIRspectrumcontrolexperiment.ThestudyshowedthattheUVmethodwassimple,feasibleandreliable.Keywords:UVspectrum;oilcontent;regressionanalysis714,: