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Título

Analysis of methanol and ethanol in virgin olive oil

AutorGómez-Coca, Raquel B.; Cruz-Hidalgo, Rosario; Fernandes, Gabriel D.; Pérez-Camino, Mª del Carmen; Moreda, Wenceslao
Fecha de publicación2014
EditorElsevier
CitaciónMethodsX 1: 207- 211 (2014)
ResumenThis work provides a short and easy protocol that allows the analysis of both methanol and ethanol in the static headspace of olive oil. The procedure avoids any kind of sample pre-treatment beyond that of heating the oil to allow a maximum volatile concentration in the headspace of the vials. The method's LOD is 0.55 mg kg¿1 and its LOQ is 0.59 mg kg¿1. Advantages of this method are: ¿Simultaneous determination of methanol and ethanol (the pre-existing Spanish specification UNE-EN 14110 only analyses methanol). ¿No need of equipment modifications (standard split injectors work perfectly). Use of a highly polar capillary GC column, leading in most cases to chromatograms in which only three dominant peaks are present ¿ methanol, ethanol, and propanol (that is extremely positive for easy interpretation of results). ¿Use of an internal standard (1-propanol) to determine the concentration of the analytes, reducing the presence of error sources.
URIhttp://hdl.handle.net/10261/122609
DOI10.1016/j.mex.2014.09.002
Identificadoresdoi: 10.1016/j.mex.2014.09.002
issn: 2215-0161
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