Thin-film oxygen sensors using a luminescent polynuclear gold(I) complex
Data(s) |
2011
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Resumo |
Robust thin-film oxygen sensors were fabricated by encapsulating a lipophilic, polynuclear gold(I) complex, bis{m-(bis(diphenylphosphino)octadecylamine-P,P')}dichlorodigold(I), in oxygen permeable polystyrene and ormosil matrices. Strong phosphorescence, which was quenched by gaseous and dissolved oxygen, was observed from both matrices. The polystyrene encapsulated dye exhibited downward-turning Stern-Volmer plots which were well fitted by a two-site model. The ormosil trapped complex showed linear Stern-Volmer plots for dissolved oxygen quenching but was downward turning for gaseous oxygen. No leaching was observed when the ormosil based sensors were immersed in flowing water over an 8 h period. Both films exhibited fully reversible response and recovery to changing oxygen concentration with rapid response times. (C) 2011 Elsevier B.V. All rights reserved. |
Identificador | |
Idioma(s) |
eng |
Direitos |
info:eu-repo/semantics/restrictedAccess |
Fonte |
Mills , A , Tommons , C , Bailey , R T , Crilly , P & Telford , M C 2011 , ' Thin-film oxygen sensors using a luminescent polynuclear gold(I) complex ' Analytica Chimica Acta , vol 702 , pp. 269-273, Impact Factor: 4.5 . DOI: 10.1016/j.aca.2011.06.059 |
Palavras-Chave | #/dk/atira/pure/subjectarea/asjc/1300/1303 #Biochemistry #/dk/atira/pure/subjectarea/asjc/1600/1602 #Analytical Chemistry #/dk/atira/pure/subjectarea/asjc/1600/1607 #Spectroscopy #/dk/atira/pure/subjectarea/asjc/2300/2304 #Environmental Chemistry |
Tipo |
article |