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ShanghaiB.R.Sci.InstrumentCo.Ltd.130023100029610064308325130023650093130062113001610054710061130023100101650091200031100078610064215006710061650091--210019921996716As()B()Cr()Hg()Sb()Se()Pb()Sn()OIUSEPA3051USEPA3015OI--3OIHNO3()H2O2()OI90%()OI/12(12)OIOISimilacformulaBrceast70%HNO330%H2O2l0.55mlPFA8mlHNO32mlH2O22123(8mlHNO32mlH2O2)0.5ml5ml45OI/--4(Psi)(min)12345678204060801001201401605:005:002:002:002:002:002:0015:006OI061910945--5Hg()As()Se()OIHNO3KMnO4OIHNO3(70%)KMnO4(5%)10.31010.5PFA5mlHNO35mlKMnO4PFAKMnO423(5mlHNO35mlKMnO4)45OI/(Psi)(min)12345678204060801001201401602:005:002:002:002:002:002:0015:00675OI06261194--6OI(HNO3)(H2O2)OI(HNO3:70%)(H2O2:30%)l0.5PFA5mlHNO32mlH2O223(5mlHNO32mlH2O2)0.5ml45OI/:(Psi)(min)1234567204060801001201405:005:002:002:002:002:0015:00675OI06231094--7OI(HNO3)OI(70%)10.5PFAl0ml(HNO3)30213(10mlHNO3)0.5m1452OI(Psi)(min)1234562040601001201402:005:002:002:002:0015:0030%(255W)30%(255W)30%(255W)50%(425W)70%(595W)70%(595W)6PFA75OI0620019606211195--8OIHF()HNO3()H2O2()H3BO3()CFA-COITennesseeHF(48%)HNO3(70%)H2O2(30%)H3BO3CFA-CA10.2PFA5mlHNO32mlH2O22mlHF2163(5mlHNO32mlH2O22mlHF)0.2ml45OI/(psi)(min)12345204060801002:005:002:002:0015:00651H3BO340ml7OI/(W)(min)6005:008PFABAAA6H3BO3CFA-C--911-5A220mlCFA-CPFA3PHCFA-CPH=7.5~8.0C(B)11-5A2PFACFA-CHF()5OI06270196--10OIHF()HNO3()H2O2()H3BO3()CFA-COITiO2()6TiO2Sb()Mn()Co()HCl(37%)HF(48%)HNO3(70%)H2O2(30%)H3BO3()CFA-CCFA-CA10.5~1.0PFAl0mlHNO32mlH2O21mlHF263(10mlHNO32mlH2O22mlHF)0.5~1.0ml45OI/(psi)(min)123456204060801001202:005:002:002:002:0015:0061H3BO340ml(W)(min)6005:007BAA6H3BO311-5A2--1120mlCFA-C3PHCFA-CPH7.5~8.0SbTiO2(AB)5OI06401194--12OIHI()OI(ITO)(HI)(57%)11PFAl0mlHI30213(10mlHI)1ml45OI/(psi)(min)12342040601002:005:002:0010:0067I2KI()I385OI06301194--13OIHF()HNO3()H2O2()H3BO3()CFA-COIHF(49%)HNO3(70%)H2O2(30%)H3BO3(4%)CFA-C()ABFe()Si()Ca()Al()Ti()Zr()Cr()Zn()Sr()Pb()Ba()Mn()Mg()Cu()A10.2g100PFA4mlHNO32153(4mlHNO31mlH2O22mlHF)4.2ml45OI()/(W)(Psi)(min)126003001001505:0025:0065240ml(W)(psi)(min)600504:0076BAA611-5A2520mlCFA-C3PHCFA-CPH7.55~8.0OI06361194--14OIHBF4()H3PO4()H2SO4()HCl()OIH3PO4(85%)H2SO4(95%)HBF4(49%)HCl(37%)11:lH2SO4H3PO420.2~0.5100PFA8ml1:1H2SO4H3PO42mlHBF40.5mlHCI3264(8ml1:lH2SO4H3PO42mlHBF40.5mlHCI)0.2~0.5ml56OI()/(W)(Psi)(min)126003001501605:0025:0076OI06351194--15OIHCl()HF()HNO3()H3BO4()CFA-COIHCl(37%)HF(48%)HNO3(70%)H2O2(4%)CFA-CA10.2~0.5gPFA(100)6mlHNO32mlHCl2mlHF2163(6mlHNO32mlHCl2mlHF)0.2~0.5ml45OI()/(W)(Psi)(min)126003001001205:0025:00650mlH3BO37OI/(W)(psi)(min)6001005:008BAA61l-5A220m1CFA-C3PHCFA-CPH7.5~8.0(AB)5OI06321194--16USEPA3015-OITexasICPUSEPA30151990SW-846USEPA3015(CLP-SOW)1991(3030K)1992911USEPA(40CFR136)90%()()OI12OI//OI()145mlOIPFA5mlHNO321123(5mlHNO3)45ml4/5--176OI()/(W)()(min)123600100100751251702:002:0010:00/1()/OIUSEPA3015l0170170107()OI0.2mICP1EPA1TexasICP()(ppn)EPA(ppb)AgAsBaCdCrHgPbSeZn511241511015750501000105010()50105000OIICPEPA--18USEPA-3051OIHNO3ICPOIUSEPA-3015OIUSEPA-3015l0.5OIPFA10mlHNO321123(10mlHNO3)0.5ml456OI(W)()(min)12100100751751:004:301OIUSEPA5.51751754.571--19100mlICP1Pb2%1ICPOI01209501AgAsBaCdCrHgPbSeZn1.40ppm9.80ppm373ppm12.6ppm49.6ppm0.14ppm825ppm0.86ppm1.20ppmOIUSEPA3051ICP--20DDTDDTSoxhIet6200~3ooml/[1]200()Lopez-Arila[2]Ganzler[3](MAE)50ml10~15Greenway[4]1OI7195716523100%/(1:1)45(50ml)1(1)--21121[5]/(1:1)()(1.2MPa)56.268.949.81641582[5]4,4’DDT901101207951625171868173747275829497939596981g/5g4,4’-DDT4g/5g1164/(1:1)1582120210~151~233/3:21:1EPA3[5]/1:13:2EPADDTDDDDDT72.564.278.485.951.085.576.210897.911910384.081.577.090.064.895.388.095.489.399.083.088.477.674.989.385.780.181.480.890.489.278.6330ml12015min4(4)--224[5]DDT98.810910097.896.697.498.211599.397.399.71051ppb550~60115015DDTDDEDDDEPA1(/1:1)[5]65(MAE)Soxhlet[2]RSD(%)SoxhletRSD(%)(MAE)RSD(%)4,4’DDT66.25.270.26.21085.779.34.468.43.963.35.362.16.468.65.260.94.965.75.644.811.077.93.769.24.768.21.71283.696.42.769.13.358.28.362.92.785.06.769.72.973.67.221.996.087.02.194.44.196.92.81165.685.93.886.83.171.96.397.41.91101.495.32.780.81.610712.050g/kg,--235Soxhlet1KingstonHM,JassieLB2Lopez-AvilaV,YoungR,BenedictoJ,etal.AnalChem,1994;67:20963GanzlerK,AndrasSalgo.Z.LebensmUntersForsch,1987;1984:2744GreenwayGM,NsanyiKometa,Analyst,1994;119:9295FishJR,ReveszR,PaperPreasentedatthe1995Pittsburghconference,NewOrleans,LA-March5-10,1995--24