Chromatographic approaches for determination of low-molecular mass aldehydes in bio-oil

Tessini C.; Muller, N; Mardones, C.; Meier D.; Berg, A; von Baer, D.

Abstract

HPLC-UV and GC/MS determination of aldehydes in bio-oil were evaluated. HPLC-UV preceded by derivatization with 2,4-dinitrophenylhydrazine allows separation and detection of bio-oil aldehydes, but the derivatization affected the bio-oil stability reducing their quantitative applicability. GC/MS determination of aldehydes was reached by derivatization with o-(2,3,4,5,6-pentafluorobenzyl) hydroxylamine hydrochloride. Two approaches for this reaction were evaluated. The first: " in solution derivatization and head space extraction" and the second: " on fiber derivatization SPME" , the latter through an automatic procedure. Both sample treatments allows the quantification of most important aliphatic aldehydes in bio-oil, being the SPME approach more efficient. The aldehyde concentrations in bio-oil were ~2% formaldehyde, ~0.1% acetaldehyde and ~0.05% propionaldehyde. © 2011 Elsevier B.V.

Más información

Título según WOS: Chromatographic approaches for determination of low-molecular mass aldehydes in bio-oil
Título según SCOPUS: Chromatographic approaches for determination of low-molecular mass aldehydes in bio-oil
Título de la Revista: JOURNAL OF CHROMATOGRAPHY A
Volumen: 1219
Editorial: Elsevier
Fecha de publicación: 2012
Página de inicio: 154
Página final: 160
Idioma: English
URL: http://www.scopus.com/inward/record.url?eid=2-s2.0-84355165242&partnerID=40&md5=aa3ec40bf9d22418369cfe503b249164
DOI:

10.1016/j.chroma.2011.10.093

Notas: ISI, SCOPUS