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A fast, reliable, ultra high performance liquid chromatography method for the simultaneous determination of amino acids, biogenic amines and ammonium ions in cheese, using diethyl ethoxymethylenemalonate as a derivatising agent

AuthorsRedruello, Begoña ; Ladero Losada, Víctor Manuel ; Cuesta Suárez, Isabel ; Álvarez Buylla, J. R. ; Martín, M. Cruz ; Fernández García, María ; Álvarez González, Miguel Ángel
Biogenic amines
UHPLC method
Amino acid
Issue Date15-Aug-2013
CitationFood Chemistry 139(1-4): 1029-1035 (2013)
AbstractDerivatisation treatment with diethyl ethoxymethylenemalonate followed by ultra-HPLC allowed the simultaneous quantification of 22 amino acids, 7 biogenic amines and ammonium ions in cheese samples in under 10 min. This is the fastest elution time ever reported for such a resolution. The proposed method shows good linearity (R2 > 0.995) and sensitivity (detection limit 0.08–3.91 μM; quantification limit <13.02 μM). Intra- and inter-day repeatability ranged from 0.35% to 1.25% and from 0.85% to 5.2%, respectively. No significant effect of the cheese matrix was observed.
Identifiersdoi: 10.1016/j.foodchem.2013.01.071
issn: 0308-8146
Appears in Collections:(IPLA) Artículos
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