Study of ultraviolet fluorescence emission in the quantification of corrosion inhibitor of the quaternary ammonium salt type in water

Química Nova

Governo do Estado do Rio de Janeiro, Rio de Janeiro, Brasil¹  Rangel, Herllaine de Almeida¹  Merçon, Fábio¹  Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brasil¹ 

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

DOI  :  10.1590/S0100-40422012000700002

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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】

Unknown