FIA双光束光度法测定生活水中钒含量徐锐

整理文档很辛苦,赏杯茶钱您下走!

免费阅读已结束,点击下载阅读编辑剩下 ...

阅读已结束,您可以下载文档离线阅读编辑

资源描述

Determinationofvanadiumcontentofthewateroflifebytwo-beammethodXuRui,ZhaoZhenyi,LiTiefu(ChemistryCollege,LiaoningUniversity,Shenyang110036,China)FIA,,(,110036)[]。,2,3,4--4’-(TSAB),,FIA,,150/h,,RSD=0.97%,,。[]FIA;;;[]TU991.21[]A[]1005-829X(2009)05-0073-02Abstract:TheapplicationofFIAtwo-beamphotometertoflowinjectionanalysisisstudied.Agroupofself-madeofcolorimeter,basedon2,3,4-trihydroxy-4’-sulfosalicylicazobenzene(TSAB)in-hexaminesolutiongeneratedyellowchelate,hasbeenused.Itischaracterizedbyhighersensitivity.AnewFIAtwo-beamphotometricmethodisusedforanalyzingthetracevanadiumcontentindomesticwaterdirectly.Thesamplingfrequencyis150times/h.Itisreproducible.TherelativestandarddeviationRSD=0.97%.Itsoperationissimpleandtheanalyticalresultissatisfactory.Keywords:FIAmethod;domesticwater;sensitivity;tracevanadium(FIA),,,,,,〔1-3〕。〔4〕,2,3,4--4’-〔4〕,,。,,150/h,。11.1UV-3400,;722,;FIA-T1,;,;AA-700,;10mm〔5〕。1g/L,(G.R.)2.963g,1L;C,50g400g(G.R.),(1+3)pH=4.51L;R1,0.15%TSAB(G.R.);R2,0.25%(CTMAB),(1+1)。。1.21。3(C)(R1,R2),(S)。R1,R2,,(Ab,Aa),,ΔAP(mL/min)CR1R2302020SWR1R2DW129520095IndustrialWaterTreatmentVol.29No.5May,200973——2009-05,29(5)C,。22.1(a)(b)。,“”ba(ΔC=Ca-Cb),ΔA=Aa-Ab,2。(λmax=475nm),λmax=483nm。2.2(1)。,。20~50℃0.01ΔA℃-1。40℃,pH3.5~7.5,。pH4.5。(2)。。7.0mL/min,Q(C)∶Q(R1)∶Q(R2)=3∶2∶2。RC1=30cm,RC2=80cm。200mL。LAb,Aa,LAa。。L=12cm。2.38min,2h。n(V)∶n(TSAB)=1∶3。2.40~0.9mg/L,,2,4.8×104L/(mol·cm),r=0.9996,3.5mg/L13,RSD=0.98%。2.50.3mg/L,≤±5%,:Na+、K+(500mg);Mg2+、Cd2+、Ni2+、Si()、Ca2+、Mn2+(5mg);As()(2.5mg);Al3+、Cr3+、P()(0.25mg);Cu2+(0.05mg);Fe3+、Bi3+、Cr()(0.04mg);Mn()(0.01mg);W()、Ti()、Sb3+、Sn()(0.04mg);Mo()(0.002mg);F-(0.05mg)。2.6100mL200mL,(1+3)1.0mL20g/L4,30mL,2.0%,,10mL,50mL,。,AAS,1。3。,ΔA=Aa-Ab,,(r=0.9996),,1.7。,150/h,(n=13,RSD=0.98%),。[][1]RosanaMA,ReginaS,WilsonFJ,etal.Selectivetracelevelanalysisofphenoliccompoundsinwaterbyflowinjectionanaly-sis-membranceintroductionmassspectrometry[J].Environ.Sci.Technol.,2001,35(10):2084-2088.[2],,,.()(-)[J].,1999,19(5):13-15.[3],,,.-[J].:,2005,42(3):227-232.[4],,.[J].,2005,33(6):865-868.[5].:,91210726[P].1992-05-20.[6],,.:,ZL200720011033.2[P].2007-01-10.1(n=5)(1)3.680.943.70(2)2.240.762.28(3)2.100.712.09(4)1.210.641.24(5)6.140.876.11(6)8.100.528.08/(mg·L-1)RSD/%AAS/(mg·L-1)[](1961—),1982,。:024-81725637,E-mail:xm_xu@163.com。[]2009-01-04()ΔA[2-+00.1sAaAbsmg/L0.750.600.450.300.15(1)(2)(3)(4)(5)sΔA=Aa-Ab74——

1 / 2
下载文档,编辑使用

©2015-2020 m.777doc.com 三七文档.

备案号:鲁ICP备2024069028号-1 客服联系 QQ:2149211541

×
保存成功