Separation and quantitative determination of linear and cyclic/branched alkanes in brazilian petroleum using urea adduction and gas cromatography: a case study revisited

Quimica nova

Aquino Neto, Francisco Radler de¹  Azevedo, Débora de Almeida¹  Marotta, Elaine¹ 

[1]Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil

关键词: urea adduction;    crude oil;    gas chromatography.;   

DOI  :  10.5935/0100-4042.20140265

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

A complete analysis of oils and their fractions allows correlations to be defined between their composition and derivatives or related geological materials. This work focused on optimization and implementation of a method for separation and quantification of n-alkanes in Brazilian oil samples by urea adduction and GC-FID techniques. Ten samples with different ºAPI were analyzed in triplicate to quantify individual n-alkanes and cyclic/branched alkane fraction. For individual quantification of n-alkanes, internal standardization with deuterated n-tetracosane was used. The use of urea adduction for the separation and quantification of n-alkanes was highly effective, with recovery values of above 80%.

【 授权许可】

CC BY