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:2004-07-11;:2004-10-10:(1971-),,,,,Tel:010-69767520,E-mail:panyong71@sina.com,,,,(,102205):(MIP),(SAW)(DMMP)(),,(SAW-MIP)5mg/m3:;;:O656.9:A:1004-4957(2005)04-0042-03StudyontheDetectionofDimethylmethylphosphonatebySurfaceAcousticWave-MolecularImprintingTechnologyPANYong,WANGYan-wu,WUZhi-zhong,YUJian-hua,HUANGQi-bin(ResearchInstituteofChemicalDefence,Beijing102205)Abstract:Aselectivemolecularimprintingcoating(nm)fordimethylmethylphosphonate(DMMP)waspre2paredonthedualchanneldelaylineofsurfaceacousticwaveusingtheelectrochemicalpolymerizingmethod.Theeffectofmolecularimprintingwasconfirmed,andthedetectionlimitofDMMPbySAW-MIPsensorwas5mg/m3.Keywords:Surfaceacousticwave;Molecularimprinting;Dimethylmethylphosphonate(surfaceacousticwave,SAW)1979WohltjenDessy[1],,;(molecularimprinting,MIP),,,[2,3](DMMP)(),POPO,,,SAWDMMP[46],,;(SAW-MIP)[7,8],,11.1:159MHz,4mm2;:U200A,;Potentiostat/GalvanostatModel283FrequencyResponseDetectorModel10251.2(DMMP),99%,GC;(),,99%,GC-MS;H2O2,,244Vol.24No.420057FENXICESHIXUEBAO(JournalofInstrumentalAnalysis)4244©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(H2SO4)V(H2O2)=31Piranha10min,,,[(Pt)(Ag,AgCl/KCl)]0.2mol/LHAc-0.2mol/LNaAc(pH=5.2)(00.8V),,,DMMP,SAW-MIPDMMP22.1,SAW-MIP,DMMP,,121SAW-MIPDMMPTable1ThedetectionofDMMPbySAW-MIPsensorpreparedunderdifferentscanspeedsandscantimesScanningrateScanningtimesFrequencydifferencebeforeFilmthicknessMaximumsignalResponsetime(80%)andaftercoatingresponsev/(mVs-1)nf/kHzl/nmf/kHzt/min554.30.964.05.0206.71.503.64.04011.02.502.37.01053.20.701.94.52012.42.804.66.04021.64.801.97.02552.30.552.75.0207.21.603.78.04028.06.307.23.55051.70.372.63.5208.52.002.66.04018.94.203.33.52Table2TheselectionofconcentrationsfortemplatemoleculeandmonomerTemplatemolecularo-PhenylenediamineRatioFrequencydifferenceFilmthicknessMaximumsignalResponsetime(80%)beforeandaftercoatingresponsec/(mmolL-1)c/(mmolL-1)f/kHzl/nmf/kHzt/min33118.61.96.82.093318.31.99.51.5153517.41.74.11.5391313.12.91.26.0315156.91.52.24.5:,,,;,,;,,25mV/s,40,31SAW-MIPDMMP,,2.2SAW-MIPDMMPSAW-MIPDMMP,DMMP251000mg/m3,Y=564.8190+2.7370X,Y(Hz),XDMMP(mg/m3),r=0.9869,5mg/m3120Hz,30Hz4:43©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(A)SAW(Au);(B)(nonMIP);(C)(MIP)3DMMP,,11,DMMP,AuDMMP,;,,DMMP,,;,,DMMP,,2.4SAW-MIPSAW-MIPDMMP(GD)VX(HD),2:SAW-MIPDMMP,DMMP,,,;GDVXHD,,,,,SAW-MIP3(SAW),DMMPSAW-MIP,SAW,LB,;,(),,,,,SAW-MIPDMMP,DMMP:[1]HENRYW,RAYMONDD.[J].AnalChem,1979,51:1458-1464.[2]FANZLD,OLIVERH.[J].FreseniusJAnalChem,1999,364:506-511.[3]FISCHERAUERG.[J].IEEEUltrasonicsSymposium,1996:439-442.[4]SUSANL.[J].AnalChem,1988,60:2801-2811.[5]JAYW,SUSANL.[J].AnalChem,1993,65:1868-1881.[6]JAYW.[J].AnalChem,1991,63:1719-1727.[7]YANGXG,SHIJX.[J].SPIE,1998,3537:261-267.[8]KARSTENH,KLAUSM.[J].ChemRev,2000,100:2495-2504.4424©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.