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201011SCIENCE&TECHNOLOGYINFORMATION[1-4],,。、。1-(4-)-3-(4-)-Cu2+,Cu2+,Cu2+。,TritonX-100pH10-,Cu2+,(ε=4.48×104L.mol-1.cm-1),,,。11.1722();PHS-3C();1-(4-)-3-(4-)-:0.02%-:pH=10X-100:5%:5%:5%:1mg/ml,10ug/ml。1.225ml,5mlpH=9.73-,5%X-1000.5ml,0.02%1-(4-)-3-(4-)-3ml,5ug,,1cm,,520nm。22.1480-580nm。,520nm。λmax=520nm。2.2PHPH=10-,2-14.0~6.0ml,,5.0ml。2-12.3,,,Cu2+。:OP,X-100,。X-100,。TritonX-1002-20.5~1.0ml,0.5ml。2-22.4,2-3,0.02%3.0~4.0mL,3.0ml。2-32.5,,Cu2+,2-435,48。35。2-42.62—2,Cu2+3~10ug/25ml,A=0.0423C+0.082(Cug/25ml),r=0.9908,ε=4.48×104L.mol1.cm-1。2.75ug/25mlCu2+,,±5%(ug):Co2+,Zn2+(2);Ni2+,Fe3+(1);(384)(mL)0.20.50.11.52.00.3800.4090.3900.2910.208(mL)2.03.04.05.06.00.2510.4090.4080.3600.340(min)051015203540500.2090.2440.1490.3500.3880.4090.4080.409(ml)3.04.05.06.07.08.00.3500.4090.4080.4090.3900.3202-1(223100)【】Cu2+。,PH10-Cu2+,520nm,4.48×104L.mol-1.cm-1,3-10ug/25ml。,NaFNaAc,,。【】;Cu2+;TheDeterminingMethodofMinimCuinElectroplatingEffluentGAOXi-shu(HongzeEnvironmentalMonitoringStation,HongzeJiangsu,223100)【Abstract】Thispaperstudiesthecolorreactionbetweenthenewcolor-producingreagentandCu2+.itscanformakindofstableredcomplexcompoundinthebuffersolutionofborax-sodiumhydroxidewithpH=10.whichthebiggestabsorptionwavelenghlies520nmandmolabsorptioncoefficientis4.48×104L.mol-1.cm-1.itsobeyBeer'slawwithinthecopperscopeof3-10ug/25ml.UndertheexistingofNaFandNaAc,theminimCuinelectroplatingeffluentcanbedetermineddirect.Theresultshowsthatthemethodpossessgoodselectivityandsensitivity.【Keywords】Color-producingreagent;Cu2+;Electroplatingeffluent○○387SCIENCE&TECHNOLOGYINFORMATION201011(387)Mn2+,Ag+,Fe2+(2);Cr6+(4);Mg2+,Pb2+(15);Al3+(20);NO3-,SO42-(10),Cl-,Na+(2000),NaF,NaAc。2-52.8250ml,6mol/ml,,,,,25ml,5%NaF2.0ml,5%NaAc2.0ml,,2-5。【】[1],..,1998,3:294-297.[2],,.2--3--5-.,1997,1:66-68.[3],,.BDTAN.,1999,1:70-72.[4]..,1997,2:175-177.:(1969—),,,,,。[:](n=6,μg/25ml)(μg/25ml)(μg/25ml)(%)14.742.006.6796.524.212.006.1798.0●,。EGR:EGRNOx,HC。EGR、:EGR10%,,EGR20%,,,HC10%。EGR10%~20%。EGR。1),NOx,,EGR。2)EGR。,NOx,,EGR。3)、,,,NOx,EGREGR。4)NOx、。EGR,,。(2);,,HC,。,(CO)(HC),,,。300。:,2:2(3):,。。,90%。,,。,,。4IV20054;201071IV。。:(1)OBDOBD:(OBD),。(IIIOBD),,。::;:();:;:;:;:“”,。【】[1][]·D·,·D·..,2006,6.[2],..,1995.[3]...[:]●+5…33°C10096°C10(366)。:、、。3.4.3,,,。(P3)。:(—)、(—)、(—40#、—5)、、、、。3.5,,。,,。1.2、。:28#、29#、、11—1B。[:]●○○●384
本文标题:电镀废水中微量铜的测定方法研究高夕恕
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