Estudo da emissão por fluorescência de ultravioleta na quantificação de um inibidor de corrosão do tipo sal de amônio quaternário em água

Química Nova

Herllaine De Almeida Rangel²  Fábio Merçon¹ 

[1] ,Governo do Estado do Rio de Janeiro Secretaria Estadual do Ambiente Instituto Estadual do AmbienteRio de Janeiro RJ ,Brasil

关键词: corrosion inhibitor;    quaternary ammonium salts;    fluorescence;   

DOI  :  10.1590/S0100-40422012000700002

来源: SciELO

【 摘 要 】

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 quaternary ammonium salt is the main fluorophore, with emission maxima at 306 and 593 nm. The best instrumental parameters were: width of excitation and emission slits of 10 and 15 nm, respectively, and scan rate of 10 nm min-1. The presence of aromatic compounds and biocides affects the analysis of corrosion inhibitors.

【 授权许可】

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