High-performance liquid chromatographic determination of 2-furaldehyde in spirits.
Official methods for the determination of 2-furaldehyde in spirits involve for a spectrophotometric evaluation, which is characterized by poor specificity. Gas chromatographic evaluations have also been proposed, which offer a much higher sensitivity, particularly when capillary columns are used. In this paper a high-performance liquid chromatographic (HPLC) method based on the formation of the 2,4-dinitrophenylhydrazones of carbonyl compounds and subsequent reversed-phase separation of these derivatives is described. Derivatization is carried out by utilizing an acidic solution of 2,4-dinitrophenylhydrazine in acetonitrile. Precipitation of the derivatives is avoided and direct injection of the sample into the HPLC system is allowed. The determination offers a high specificity and a detection limit of the order of 10(-8) mol/l. Accuracy and reproducibility data are presented.
Lo Coco
F
F
Istituto di Chimica, Università di Udine, Italy.
Ceccon
L
L
Valentini
C
C
Novelli
V
V
D000434:Alcoholic Beverages / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D005662:Furaldehyde / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D015203:Reproducibility of Results; D013056:Spectrophotometry, Ultraviolet
D005662:Furaldehyde