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Master's Dissertation
DOI
10.11606/D.46.2016.tde-05102016-121808
Document
Author
Full name
Luciene Cristina Stein
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2004
Supervisor
Committee
Coichev, Nina (President)
Pedrotti, Jairo Jose
Vasconcellos, Perola de Castro
Title in Portuguese
Estudo de alguns indicadores fluorescentes para oxigênio em solução aquosa
Keywords in Portuguese
Análise fotométrica
Fluorescência
Oxigênio
Química analítica
Abstract in Portuguese
Complexos de rutênio (II) tris(2,2'-bipiridina) e 5,10, 15,20-tetrakis(1-metilpiridínio-4-il) porfirina de paládio (II) foram empregados como indicadores da concentração de oxigênio dissolvido em solução aquosa, baseando-se no efeito supressor do oxigênio na fluorescência desses íons complexos. Soluções aquosas desses complexos foram empregadas como indicadoras luminescentes, para verificar a eficiência de um sistema de degaseificação aplicado para remoção de oxigênio de amostras de solução. O uso do íon rutênio (II) tris(2,2'-bipiridina) como indicador foi avaliado no monitoramento do consumo de oxigênio na reação de autoxidação de S(IV) catalisada por Mn(II) e pelo complexo de Ni(II)/tetraglicina.
Title in English
Study of some fluorescent indicator for oxygen in aqueous solution
Keywords in English
Fluorescence
Oxygen
Photometric analysis,Analytical chemistry
Abstract in English
The complexes of tris(2,2'-bipyridyl)ruthenium(II) and 5,10,15,20-tetrakis(1-methilpyridyl-4) porphyrin palladium (II), were used as luminescent probes of dissolved oxygen in aqueous solutions, based on the quenching effect of oxygen in fluorescence spectrometry. Aqueous solutions of these complexes served as a luminescent probe to check the performance of one flow degassing device applied to the removal of oxygen from sample solution. The ion tris(2,2'-bipyridyl)ruthenium(II) was used as one probe to evaluate the oxygen consumption on the autoxidation reactions of S(IV) catalyzed by Mn(II) and Ni(II)/tetraglycine complex.
 
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Publishing Date
2016-10-05
 
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