title: Qualitative and quantitative high-performance liquid chromatographic analysis of aldehydes in Brazilian sugar cane spirits and other distilled alcoholic beverages.
abstract: A study is presented on the high-performance liquid chromatographic analysis of eighteen aldehydes in Brazilian sugar cane spirits and other international brandies. The aldehydes were separated by reversed-phase high-performance liquid chromatography as 2,4-dinitrophenylhydrazones (DNPHs). A very good chromatographic separation was achieved for eighteen different aldehyde-DNPHs. The proposed methodology is quite simple and not very time-consuming. Ten aldehydes were identified in 75 beverages and quantified using the external standard method with UV detection at 365 nm. A detailed knowledge of the aldehyde content should significantly contribute to improving the quality control of distilled spirits.
authors.affiliation: Universidade de São Paulo, Instituto de Química de São Carlos, Departamento de Quimica e Fisica Molecular, Brazil.
authors.forename: R F
authors.initials: RF
authors.lastname: Nascimento
authors.forename: J C
authors.initials: JC
authors.lastname: Marques
authors.forename: B S
authors.initials: BS
authors.lastname: Lima Neto
authors.forename: D
authors.initials: D
authors.lastname: De Keukeleire
authors.forename: D W
authors.initials: DW
authors.lastname: Franco
mesh_terms: D000434:Alcoholic Beverages / Q000032:analysis* / Q000592:standards; D002138:Calibration; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D006835:Hydrazones / Q000032:analysis*; D011786:Quality Control; D015203:Reproducibility of Results; D013056:Spectrophotometry, Ultraviolet
chemical_list: C001072:2,4-dinitrophenylhydrazone; D006835:Hydrazones