顶空固相微萃取气相色谱法测定水中四氢呋喃的研究韩志辉

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

-,,(,410007)[],,。、、,。,,97.5%~106.7%,3.2%~4.9%,0.10μg/L,。[];;[]TU991.21;X832[]A[]1005-829X(2011)01-0068-03Determinationoftetrahydrofuraninwaterbyheadspacesolid-phasemicroextraction-gaschromatographyHanZhihui,FuSheng,YuKeping(InstituteofLabourHygieneandOccupationalDiseasesPreventionandCure,Changsha410007,China)Abstract:Theheadspacesolid-phasemicroextractionisusedforpretreatingthesample.Combiningwithgaschromatography,hydrogenflameiondetectorisusedfordeterminingtetrahydrofuraninthewatersample.Theoptimalconditionsareobtainedbymeansofstudyingthefactors,suchas,SPMEfiber,extractiontimeandextractiontemperature,desorptiontimeanddesorptiontemperature,whichhaveeffectsontheextractionefficiency.Underoptimalconditions,goodrecoveryratewhichrangefrom97.5%-106.7%isachieved.Itsrelativestandarddeviationis3.2%-4.9%andthedetectionlimitisupto0.10μg/L.Themethodcanbeappliedtothedeterminationoftracetetrahydrofuraninwater.Keywords:headspacesolid-phasemicroextraction;gaschromatography;tetrahydrofuran,、、、。,。,。〔1〕-,-。(SPME)2090、、,、、,〔2〕。,、,、〔3〕〔4-5〕。,,、,。11.1TraceGC2000,(FID),/,Finnigan;:DB-624(30m×0.32mmID,1.8μm),J&W;SPME,/(PDMS/DVB,65μm),(PDMS,100μm),/(CAR/PDMS,75μm),Supelco;IKARHbasicKT/C。31120111IndustrialWaterTreatmentVol.31No.1Jan.,201168:5μL200mL,。1.2:70℃,2min,20℃/min140℃,2.5min;250℃;,2min,10∶1;FID250℃。1.350mL,40mL,2.0gNaCl,,,,65℃。20min,,,,25min,2min,,。,,。22.1SPME50μg/L。2.1.1/(PDMS/DVB,65μm)、(PDMS,100μm)、/(CAR/PDMS,75μm)50μg/L,。:PDMS,;PDMS/DVB,CAR/PDMS,CAR/PDMS。2.1.2,。,,,,。,50~80℃,60℃,,75℃,。65℃,:20min,,,25min。2.1.3。,,。200~280℃,,,,250℃。,。,,2min。2.1.4,,。NaCl,。:1.0~2.5g,,2.0gNaCl。2.1.5SPME0.75mm。,、,,;0.75mm,。2.2-,1。3.16min。12.2.1,:0、5.56、11.12、55.60、111.20、278.00μg/L。40mL2011-01,31(1)69-,,:Y=0.0248X-0.0265,r=0.9998。3∶1L=0.10μg/L。,0.30~278.00μg/L,。2.2.2-,,6,1。1(n=6)95%~110%,6RSD≤5%,。3、,,,,;,,。[][1],,,.-[J].,2007,20(2):82-84.[2]MesterZ,SturgeonR.Solidphasemicroextractionasatoolfortraceelementdetermination[J].ComprehensiveAnalyticalChemistry,2003,41(3):371-391.[3]SakamotoM,TsutsumiT.Applicabilityofheadspacesolid-phasemicroextractiontothedeterminationofmulti-classpesticidesinwaters[J].JournalofChromatographyA,2004,1028(1):63-74.[4].[J].,2007,18(4):86-88.[5],,,.--[J].,2006,18(6):497-502.[](1977—),2005,。:0731-85602030,E-mail:gwen3012@126.com。[]2010-09-21()/(μg·L-1)/(μg·L-1)/(μg·L-1)/%RSD/%146.215049.6099.23.2238.525048.7597.52.619.321010.32103.24.927.841010.67106.74.72011-01,31(1),:-≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤··,:、,,,,;。、、、、、;、。,、,,,()。———,.CN101585610,、、、、、、、、、、。、、、,,,,,,。,,,,。———.CN101591109———,,.CN101734772。、、、、,,、COD、BOD、、、、、。()70

1 / 3
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