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

Elaine Marotta | Zendy; Francisco Radler de Aquino Neto | Zendy; Débora de Almeida Azevedo | Zendy

Open Access

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

Author(s) -

Elaine Marotta,

Francisco Radler de Aquino Neto,

Débora de Almeida Azevedo

Publication year - 2014

Publication title -

química nova

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.214

H-Index - 73

eISSN - 1678-7064

pISSN - 0100-4042

DOI - 10.5935/0100-4042.20140265

Subject(s) - urea , petroleum , chemistry , liquefied petroleum gas , chromatography , organic chemistry

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%

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