2012
DOI: 10.1590/s0100-40422012000700002
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Estudo da emissão por fluorescência de ultravioleta na quantificação de um inibidor de corrosão do tipo sal de amônio quaternário em água

Abstract: Recebido em 22/2/11; aceito em 16/2/12; publicado na web em 30/4/12 STUDY OF ULTRAVIOLET FLUORESCENCE EMISSION IN THE QUANTIFICATION OF CORROSION INHIBITOR OF THE QUATERNARY AMMONIUM SALT TYPE IN WATER. Quaternary ammonium salts are the corrosion inhibitors most frequently used by the oil industry. In this study, the ultraviolet fluorescence technique was evaluated for the analysis of a quaternary ammonium salt in water as a corrosion inhibitor. The comparison with standard salt showed that an alkyl aryl quate… Show more

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Cited by 2 publications
(2 citation statements)
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“…Another aspect of great importance in this analysis was the experimental evidence that eugenyl acetate presented the characteristics of fluorescence, a fact previously not shown in literature. According to Rangel and Merçon (2012), it was difficult to predict the photoluminescence characteristic of a molecule, but certain general characteristics of the structure verified the favoring efficient radioactive deactivation. Most of the compounds exhibiting fluorescence were aromatic, and some aliphatic, alicyclic or carbonylated structures with highly conjugated double bonds that may show fluorescence that can be explained by the fact that aromatics have transition levels (p ?…”
Section: Confocal Fluorescence Microscopymentioning
confidence: 99%
“…Another aspect of great importance in this analysis was the experimental evidence that eugenyl acetate presented the characteristics of fluorescence, a fact previously not shown in literature. According to Rangel and Merçon (2012), it was difficult to predict the photoluminescence characteristic of a molecule, but certain general characteristics of the structure verified the favoring efficient radioactive deactivation. Most of the compounds exhibiting fluorescence were aromatic, and some aliphatic, alicyclic or carbonylated structures with highly conjugated double bonds that may show fluorescence that can be explained by the fact that aromatics have transition levels (p ?…”
Section: Confocal Fluorescence Microscopymentioning
confidence: 99%
“…O espectrômetro, assim como espectrofluorímetro é um instrumento espectroscópico que utiliza um elemento de dispersão (monocromador), juntamente com um transdutor para converter as intensidades radiantes em sinais elétricos. Diferente dos espectrofotômetros, equipamentos direcionados para medidas de absorbância e transmitância em função do comprimentos de onda, os espectrômetros são instrumentos que operam sobre uma ampla faixa de comprimentos de onda, medindo de forma quase contínua a intensidade de cada λ (MARTINHO, 1994;SKOOG et al, 2006;RANGEL;MERCON, 2012). Filtros ópticos do tipo passa-alta são utilizados para atenuar a luz que é retroespalhada pela amostra avaliada, permitindo uma melhor visualização dos sinais de interesse.…”
Section: Seletor De Comprimento De Ondaunclassified