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SEPARATION AND QUANTITATIVE DETERMINATION OF LINEAR AND CYCLIC/BRANCHED ALKANES IN BRAZILIAN PETROLEUM USING UREA ADDUCTION AND GAS CROMATOGRAPHY: A CASE STUDY REVISITED

Elaine Marotta, Francisco Radler de Aquino Neto, Débora de Almeida Azevedo
2014 Química Nova  
publicado na web em 22/09/2014 SEPARATION AND QUANTITATIVE DETERMINATION OF LINEAR AND CYCLIC/BRANCHED ALKANES IN BRAZILIAN PETROLEUM USING UREA ADDUCTION AND GAS CROMATOGRAPHY: A CASE STUDY REVISITED. 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
more » ... ian oil samples by urea adduction and GC-FID techniques. Ten samples with different o API 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%.
doi:10.5935/0100-4042.20140265 fatcat:4o6oo7jupjgb7fnp6gpy5bqhva