English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/186237
Share/Impact:
Statistics
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Determination of saturated aliphatic hydrocarbons in vegetable oils

AuthorsGómez-Coca, R. B. ; Cert, María Rosa ; Pérez Camino, María del Carmen ; Moreda, Wenceslao
KeywordsFuel-oil
Mineral oil
Saturated hydrocarbons
Silver-silica gel fractionation
Unresolved Complex Mixture (UCM)
Issue Date2016
PublisherConsejo Superior de Investigaciones Científicas (España)
CitationGrasas y Aceites 67 (2): e127 (2016)
AbstractThe aim of this work is to inform about the development of a simple and reliable off-line method for the determination of saturated hydrocarbons (SH) in vegetable oils. SH can be used as markers for fuel or for mineral oil contamination in edible oils and fats. The method consists of the isolation of the fraction by LC on deactivated silver-silica gel and subsequent on-column GC-FID analysis. This stationary phase was prepared avoiding any kind of activation. The method was developed and validated through the participation in both a proficiency test organized by the Joint Research Centre of the European Commission, and a collaborative trial carried out with trained Spanish laboratories according to the standard ISO 5725. Results showed acceptable repeatability and reproducibility values, and Horrat index, being this protocol in use with satisfactory results ever since. The method’s LOQ is 15 mg·kg–1 and its LOD 5 mg·kg–1, which make it suitable to quantify the 50 mg·kg–1 limit established by the EU, and to detect mineral oil content within the 10–500 mg·kg–1 range. Although other procedures with lower LOD have been developed throughout the years, the use of just regular laboratory equipment such as GC-FID makes the proposed method appropriate for application on a routine basis.
Description9 Páginas.-- 3 Figuras.-- 3 Tablas
Publisher version (URL)http://dx.doi.org/10.3989/gya.0627152
URIhttp://hdl.handle.net/10261/186237
ISSN0017-3495
E-ISSN1988-4214
Appears in Collections:(IG) Artículos
Files in This Item:
File Description SizeFormat 
GrasasYAceites_2016_V67_e127.pdfArtículo principal1,6 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.