Determination of Antimony by Surface-Enhanced Raman Spectroscopy

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1、DeterminationofAntimonybySurface-EnhancedRamanSpectroscopyAndreiYu.Panarin,aInnaA.Khodasevich,aOlgaL.Gladkova,bSergeiN.Terekhova,*aB.I.StepanovInstituteofPhysics,NationalAcademyofSciencesofBelarus,NezalezhnastiAve.,68,220072,Minsk,BelarusbBelarusianStateUniversityofInformaticsandRadioelectronic

2、s,P.BrovkaStr.6,220013Minsk,BelarusAhighlysensitivemethodforthedetectionandquantitativepollutantsofpriorityinterest.5Micro-amountsofSbareevaluationofantimony(III)usingthesurface-enhancedRamanknowntocauseharmfuleffectstohumanhealth;6e.g.,scattering(SERS)techniqueisdemonstrated.Themethodisbasedex

3、posuretoitcanstimulatedisordersoftherespiratoryontheanalysisofSERSspectraintensityofantimonyboundtotract,themucousmembranesofthealimentarycanal,phenylfluorone(Sb-PhF).Phenylfluoroneiswidelyusedasanskin,etc.Thetoxicityandmetabolicactivityofantimonyorganicreagentforthespectrophotometricdeterminatio

4、nofsomedependonitsoxidationstate.Sb(III)isgenerallyacceptedheavymetals.FortheSERSexperimentaSb-PhFcomplexwas7,8toexerta103highertoxicitythanSb(V)compounds.adsorbedontothesilveredporoussiliconsubstrate.ThesignificantTherefore,thedevelopmentofmethodsforthesensitivedegradationoftheSERSsignalwasobse

5、rvedduringmeasure-mentsintheair.ThetimeevolutionofSERSspectraatambientanddeterminationofSb(III)isveryimportant.degassedconditionswasinvestigatedtofindanoptimalregimeforUntilnow,avarietyoftechniquesfortheanalysisofSERSmeasurements.ThelimitofSbdetectionindegassedtraceamountsofantimonyhavebeenestab

6、lished,suchsampleswasdeterminedtobenear1ng/mL,whichisoneorderasspectrophotometry,9–14hydridegenerationatomicofmagnitudelessthanthatattainablebythephotometricapproach.absorptionspectrometry(HG-AAS),15–18hydridegenera-ThelinearrangeofthemethodtoSb(III)wasfoundtoamasstion-atomicfluorescencespectrom

7、etry(HG-AFS),19–23concentrationrangeof1–10ng/mL.Thisapproachpermitsaninductivelycoupledplasmaopticalemissionspectrom-absolutequantityofSb(III)tobedetectedatthepicogramlevel(50etry(ICP-OES),23,24inductivelycoupledplasmamasspg).Iti