反相流动注射催化光度法测定废水中的铜苏苓

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DeterminationofcopperinwastewaterbyreversedphaseflowinjectioncatalyticspectrophotometrySuLing,ZhangHaitao(XuzhouVocationalCollegeofArchitecturalTechnology,Xuzhou221116,China),(,221116)[]、,Fe3+S2O32-,、,。,0.008mg/L,0~0.5mg/L。,1.5%,97.1%~98.3%。[];;[]X832[]A[]1005-829X(2009)09-0075-02Abstract:Tosolvetheproblemsofinterferentialionsinindustrialwastewaterandthenecessityoforganicsolventextraction,thereversedphaseinjectionanalyticaltechniqueisappliedtothespecificreactionofcopper-catalyzedFe3+oxidationS2O32-,overcomingthedeficiencies,suchascomplicatedoperationofthetraditionalanalysis,slowanalyticalspeed,andtheinaccuracycausedbymanualoperation.Underoptimizedconditions,thedetectionlimitis0.008mg/L,linearrangeis0to0.5mg/L.Therelativestandarddeviationis1.5%,andtheindexedrecoveryrateis97.1%-98.3%.Keywords:reversedphaseinjection;catalyticspectrophotometry;copper[]“”(90250886700155)29920099IndustrialWaterTreatmentVol.29No.9Sep.,2009,0.01mg/L,。、、、,。〔1〕、〔1〕。、,;,,。Fe3+S2O32-〔2〕,[Fe(S2O3)2]-,,[Fe(S2O3)2]-,1min,,,。(FIA)〔3〕,,。11.1Fe3+S2O32-[Fe(S2O3)2]-,[Fe(S2O3)2]-Fe3+。Fe3++2S2O32-=[Fe(S2O3)2]-(1)()[Fe(S2O3)2]-+Fe3+=2Fe2++S4O62-(2)()(2):[Fe(S2O3)2]-+Cu2+=Cu++Fe2++S4O62-(3)()Cu++Fe3+=Cu2++Fe2+(4)()(2),,。1.2:UV2300/;FIA-3110。75——2009-09,29(9)1.00g/L,;0.3mol/LFeCl3;0.025mol/LNa2S2O3。,。1.3FIA1。S、S2O32-Fe3+,,P1、P215s,,Fe3+50μL(0.68mL/min),S(1.13mL/min)S2O32-(0.68mL/min);,22s,P1、P2,Fe3+S,S2O32-70cm,,540nm,,W。lg(A0/A),,。22.1FeCl3、Na2S2O3()1cm,UV2300/400~700nm,,[Fe(S2O3)2]-540nm,540nm。2.2FIAFIA,,,,(RFIA)〔4〕。,,。,,,P1100s,。2.3/,20s。,,,50μL,70cm(0.5mm),。2.4,FeCl3、Na2S2O3,,A0,FeCl3、Na2S2O30.03、0.025mol/L。FeCl3,,,,。pH2,1%FeCl3,0.3mol/L,10。Na2S2O3、、,,pH9~10,Na2CO3,。2.5,,Na+、Ca2+、Mg2+、Fe3+、Zn2+、Al3+、Ni2+、Cd2+、Co2+、Pb2+、Mn2+、Cr3+。2.6,100mL6mol/L0.5mL。,lg(A0/A)0~0.5mg/L。lg(A0/A)=1.2731c+0.012,r=0.9987。110.008mg/L。2.7,201114〔(0.199±0.018)mg/L〕11,0.189mg/L,1.2%。,。(87)76——2009-09,29(9)2.80.45μm,100mL6mol/L0.5mL,,1。3:,Fe3+S2O32-,,;,、、、,。[][1].[M].:,1997:414-416.[2].[M].2.:,1986:34.[3]RuzickaJ,HansenEH.Flowinjectionanalyses.Part.Anewconceptoffastcontinuousflowanalysis[J].Anal.Chim.Acta,1975,78:145-157.[4].[M].:,1999:47.(76)。3。(5),37.5t,,29t,4。4(1)—+、、、。(2)—+,,,。(3)GBS—+,20%,,Na2SO470%,,“”。[][1].-[J].,2006(10):35-37.[](1982—),2006(),。:15983597660,E-mail:010-62390947@163.com。[]2009-05-05()3pHSS/(mg·L-1)COD/(mg·L-1)NH4+/(mg·L-1)Cr6+/(mg·L-1)Na+/(mg·L-1)8~930~5080~100500~15000.01~0.05100~10006~970150—0.5130004SSCODNH3-NTVCr6+TCr2005/(mg·L-1)60.5213.56327.51.850.30.612005/(t·a-1)22.780.12372.80.70.110.23/(t·a-1)000000000000000000000000000000000000000000000000000:—+1(n=5)/(mg·L-1)/%/(mg·L-1)/%10.271.10.1098.320.391.40.1097.1[](1967—),2003,,,。:0516-83889077,E-mail:sulingxuzhou@163.com。[]2009-05-05()000000000000000000000000000000000000000000000,。,,;,。。———,,,.CN101269893··87——

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