Progress of Cryogenics and Isotopes Separation


The National Conference with international participation on New Cryogenic and Isotope Technologies for Energy and Environment - EnergEn 2018 is organized by the National Research-Development Institute for Cryogenic and Isotopic Technologies - ICSI Rm. Valcea with the scientific participation of the University of Pitesti and the University of Craiova and will be held at Baile Govora, in 2018.


SPIRITS classification using 1H nmr and chemometrics



Raluca Popescu, Oana-Romina Dincă, Diana Costinel, Roxana Elena Ionete*


National Research and Development Institute for Cryogenics and Isotopic Technologies - ICSI Rm. Valcea,

Uzinei Street no. 4, P.O. Box Râureni 7, 240050, Râmnicu Vâlcea, Romania





The potential of 1H NMR spectroscopy to differentiate spirits was evaluated. Spirits contain varying proportions of volatile compounds like alcohols, esters, organic acids, etc. In this study 101 samples of distilled beverages (spirits) with different botanical origin were investigated using 1H NMR spectroscopy in order to classify reference samples and to authenticate test samples. Discriminant analysis (DA) was used to differentiate the spirits and to identify the chemical compounds responsible for the discrimination among groups. Grape and cereal spirits differentiated well from fruit spirits. Test samples were correctly classified.


               Keywords: spirits classification, 1H NMR, volatile composition, chemometrics.


*Corresponding author: Roxana Elena Ionete, phone: 0250.732.744; fax: 0250.732.746; E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it