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《基于羅丹明類熒光探針的合成與識別性能-研究》由會員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、萬方數(shù)據(jù)青島科技大學(xué)研究生學(xué)位論文SYNTHESISANDRECoGNITIoNPRoPERTIESOFNEWFLUoRESCENTPROBEBASEDONRHODAMINEABSTRACTTherecognitionandsensingofbiologicallyandenvironmentallyimportantspecieshasemergedasasignificantgoalinthefieldofchemicalsensorsinrecentyears．Amongthevariousanalyticalmethods，fluorogenicmet
2、hodsinconjunctionwithsuitableprobesareperferableapproachesforthemeasurementoftheseanalytesbecausefluorimetryisrapidlyperformed，nondestructive，highlysensitive，sutiableforhigh—throughputscreeningapplications，andCanaffordrealinformationonthelocalizationandquantityofthetargetsofinterest
3、．Asafluorophoreandchromophoreprobe，therhodaminefluorochromehasattractedconsiderableinterstfromchemistsonaccountofitsexcellentphotophysicalpropertiessuchaslongabsorption．a(chǎn)ndemissionwavelength，highmolarextinctioncoefficientandhighfluorescentquantumyieldandSOon．Thefollowingarethemainco
4、ntentofthisdissertation．Inthepartofreview，severalrelatedissuesoffluorescencewereintroduced，includingthebasicconceptoffluorescence，speciesoffluorophores，thedetectionmechanismanditsdevelopmentoffluorescentprobe．Severalfluorescentprobebasedonrhodamine—lactam【weredesignedandsynthesized，
5、andtheirsturetureswereconfirmedby1HNMRand”CNMR，aswellasstudieditsfluorescenceandUVspectrum．Thecompound2-1couldusedasanake—eyefluorescentprobe，whichcoulddetectFe3+inCH3CN，showingthestrongemissionat580nm．BasedonB-Hplotthe1：1bindingmodewasproposed，andthedetectionlimitwasmeasuredtobe5．1
6、8×10。7mol／L(sm≥31．Ⅱ1萬方數(shù)據(jù)基于羅丹明類熒光探針的合成及識別性能研究Fe3+couldherecognizedbycompound2．2i11CHsCNwiththedetectionIimitof1．97×104mol／L(S／N≥3)．Moreimportantly,the2-2-Fe3+complexcouldbeusedasreversiblefluorescentprobetorecognizeF．．Ahovelrhodamine6G．basedsensor2-4wassynthesized，whichexhibitedahigh
7、selectivityforH2P04‘inthepresenceofmanyotheranionsinaCH3CN／H20(5／5，v／v)，andthedetectionlimitwas4．32x10-6mol／L(S／N≥3)．Meanwhilecompound2-4wasalsoappliedtoapH(2．6～4，5)fluorescentsensorinCHaCN-Na3C6Hs07(O．1tool／L；5／5，v／v)buffersolution．Near-infareddye3—1and3-2weredevelopedwithlargestok
8、esshift，andtheirstu
