Nascimento R F, Marques J C, Lima Neto B S, De Keukeleire D, Franco D W
Universidade de São Paulo, Instituto de Química de São Carlos, Departamento de Quimica e Fisica Molecular, Brazil.
J Chromatogr A. 1997 Oct 3;782(1):13-23. doi: 10.1016/s0021-9673(97)00425-1.
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.
