luminol glow light c11-5-1鲁米诺发光灯c

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1、LuminolGlowLight:ADemonstrationC11-5-01Didyouknow?ThefirstwrittenacknowledgementofchemiluminescentreactionswasmadebyAristotle(384-322BC)whonotedweakemissionfromsomedeadfungiandfish.Introduction:Chemiluminescenceistheprocessinwhichenergyfromachemicalreactionisreleaseddirectlyas

2、lightwithouttheinvolvementofheatorflame.Chemiluminescenceisnotsimilartofluorescence(neonsigns),phosphorescence(glowinthedarktoys),orincandescence(lightbulbs),butmostsimilartobioluminescence.Themostcommonexampleofthisprocessisthebioluminescenceofthefirefly.Thefireflyis,byfar,th

3、emostefficientexampleofabioluminescentsystemdiscoveredtodate.Itapproachesatheoreticallimitbyproducing88photonsoflightforeach100moleculesofreactantyieldinganastonishing88%efficiencyrate!Modernresearchintochemiluminescencehasledtodiscoveriesofdozensoflight-producingchemicalreact

4、ions,butmostofthemareonlyabout1%efficient.Togiveyouanotherexample,alightbulbisonlyabout10%efficientatconvertingelectricalenergytolightwiththerestoftheenergyproducingheat.ApplicationsofChemiluminescence·PharmaceuticalIndustry(analysisandqualitycontrol)·ClinicalScience·AluminaIn

5、dustry·Forensics(luminolisalsousedincrimesceneanalysis,wherebyithelpsidentifydriedbloodbyreactingwithitandfluorescing)·DetectingthephotoactivityofwaterthroughitsH2O2Concentration.·DetectingNitricOxideinthebreathofAsthmaPatients.·HPLC(HighPerformanceLiquidChromatography)GlowPro

6、ducts:Themainimportanceofchemiluminescenceisinthefactthatitisacoldsystem.Energyintheformoflightisproduceddirectlyfromthechemicalreactionwithoutfirstgoingthroughanintermediatestageinvolvingheat.Chemiluminescentglowproductsneverheatup,arenotasourceofignition,andarenonflammable.T

7、hisiswhymodernsciencewishedtocopythefirefly!Glowproductshaveanabundanceofusesasacold,portable,lightsourceandareanexcellentsourceofsafefun.Seethelinkprovidedbelowformoreinformationonglowsticks.ChemiluminescenceVideoClips:http://www.shsu.edu/~chm_tgc/chemilumdir/chemiluminescenc

8、e2.htmlHowlightstickswork:http://chemistry.about.com/od/howth