Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/67787
Type: Artigo de periódico
Title: Gasoline, Kerosene, and Diesel Fingerprinting via Polar Markers
Author: Haddad, R
Regiani, T
Klitzke, CF
Sanvido, GB
Corilo, YE
Augusti, DV
Pasa, VMD
Pereira, RCC
Romao, W
Vaz, BG
Augusti, R
Eberlin, MN
Abstract: Venturi easy ambient sonic-spray ionization mass spectrometry working in the liquid mode (V-L-EASI-MS) is shown to provide rapid and reliable characterization of crude oil distillates. With no extraction or pretreatments, samples of gasoline, kerosene, diesel, and admixtures of gasoline/diesel and gasoline/kerosene were directly analyzed by V-L-EASI(+)-MS. Homologous series of natural N-heteroaromatics were detected in their protonated forms providing typical profiles of polar markers. For gasoline, V-L-EASI(+)-MS detects a homologous series of mainly C1-C5 alkyl pyridines. For kerosene, a typical series of alkylated tetrahydroquinolines is detected. For diesel, the V-EASI(+)-MS profile is much richer because of the detection of several classes of many N-heteroaromatics. V-L-EASI(+)-MS is also shown to provide typical spectra for petrochemical gasolines detecting specific antioxidants. Admixtures of gasoline/kerosene and gasoline/diesel are also clearly characterized with limits of detection of 10 and 1% (v/v), respectively. Fourier transform-ion cyclotron resonance mass spectrometry (FT-ICR MS) has been used to confirm assignments of the polar markers detected by V-L-EASI(+)-MS.
Country: EUA
Editor: Amer Chemical Soc
Rights: fechado
Identifier DOI: 10.1021/ef300277c
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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