@prefix prodottidellaricerca: . @prefix istituto: . @prefix prodotto: . istituto:CDS053 prodottidellaricerca:prodotto prodotto:ID33339 . @prefix pubblicazioni: . @prefix unitaDiPersonaleInterno: . unitaDiPersonaleInterno:MATRICOLA6038 pubblicazioni:autoreCNRDi prodotto:ID33339 . @prefix unitaDiPersonaleEsterno: . unitaDiPersonaleEsterno:ID3450 pubblicazioni:autoreCNRDi prodotto:ID33339 . @prefix modulo: . modulo:ID2634 prodottidellaricerca:prodotto prodotto:ID33339 . @prefix rdf: . @prefix retescientifica: . prodotto:ID33339 rdf:type retescientifica:ProdottoDellaRicerca , prodotto:TIPO1101 . @prefix rdfs: . prodotto:ID33339 rdfs:label "Chiral nano-liquid chromatography-mass spectrometry applied to amino aids analysis for orange juice profiling (Articolo in rivista)"@en . @prefix xsd: . prodotto:ID33339 pubblicazioni:anno "2008-01-01T00:00:00+01:00"^^xsd:gYear . @prefix skos: . prodotto:ID33339 skos:altLabel "
G.D'Orazio, A.Cifuentes, S.Fanali (2008)
Chiral nano-liquid chromatography-mass spectrometry applied to amino aids analysis for orange juice profiling
in Food chemistry
"^^rdf:HTML ; pubblicazioni:autori "G.D'Orazio, A.Cifuentes, S.Fanali"^^xsd:string ; pubblicazioni:paginaInizio "1114"^^xsd:string ; pubblicazioni:paginaFine "1121"^^xsd:string ; pubblicazioni:numeroVolume "108"^^xsd:string . @prefix ns12: . prodotto:ID33339 pubblicazioni:rivista ns12:ID339802 ; skos:note "ISI Web of Science (WOS)"^^xsd:string ; pubblicazioni:titolo "Chiral nano-liquid chromatography-mass spectrometry applied to amino aids analysis for orange juice profiling"^^xsd:string ; prodottidellaricerca:abstract "Determination of amino acid enantiomers is a very important topic in food analysis, since the presence of D-isomers may indicate, e.g.,\nadulteration, microbiological contamination, uncontrolled fermentation processes, etc. In fact, the D- and L-enantiomers contents can be\na useful marker for several elements such as quality control, contamination detection, processing monitoring, etc. Here we studied the\npotentiality of nano-liquid chromatography (nano-LC) coupled with mass spectrometry for the enantiomeric separation of several D- and\nL-amino acids that can be found in food products. Analytes were derivatized with fluorescein isothiocyanate (FITC). The mixture was\ninjected and compounds focused on a C18 cartridge, then nano-LC analysis was carried out in a capillary column (75 lm i.d.) packed\nwith vancomycin-modified silica\u0096diol particles. The effect of some experimental parameters, such as pH and buffer concentration on\nenantioresolution and retention factors, was studied for method optimization. The chromatographic separation system was coupled with\nan ion-trap mass spectrometer through a nano spray interface. It provided a final evaluation on analytes detected in all investigated samples\nwith LOD values as low as 8 ng/mL. That method was applied to the comparative analysis of two different orange juice samples\n(fresh natural vs. commercial one). Obtained profiles confirmed expected high quality standards. In fact, they mainly contained L-amino\nacids forms and not their antipodes." ; prodottidellaricerca:prodottoDi modulo:ID2634 , istituto:CDS053 ; pubblicazioni:autoreCNR unitaDiPersonaleInterno:MATRICOLA6038 , unitaDiPersonaleEsterno:ID3450 . ns12:ID339802 pubblicazioni:rivistaDi prodotto:ID33339 .