Abstract:
SPECTROPHOTOMETRICDETERMINATIONOFTlCARRIERIN201Tl┐TlClINJECTIONGongQuanshengJingLie(ChinalnstituteofAtomicEnergy,P.O.Box275(22),Beijing102413)ABSTRACTAsimpleandsensitivemethodforthespectrophotometricdeterminationofcarriercon-tent(Thalium)in201Tl-TlClinjectionisdescribed.Thalium(Ⅰ)isoxidisedtoThalium(Ⅲ)byaqueousbromine,thenexcessbromineisremovedbyaddingsulfosalicylicacid.Inbufersolution(NH4Cl-NH4OH)atpH11.7withthepresenceofemulsiferOP,thalium(Ⅲ)andladionformacomplexhavinganabsorptionmaximumat469nmwithamolarab-sorptivityof1.37×104m2/mol.Beer′slawisobeyedintheconcentrationrangeof0—7μg/5mL.Theefectofimpurityelementsin201Tl-TlClinjectionisexamined.Itisanidealmethodfortheanalysisofradioactivesolution.Keywords201Tl-TlClCadionContentofthaliumSpectrophotometry.