Determination of Ethanol Content in Alcoholic Products by LF-NMR
Gianluca Farine,
Maria Scilinguo,
Chiara Calvagna,
Silvia Romano,
Marco Polito,
Salvatore Sgrò
Affiliations
Gianluca Farine
Chemical Laboratory of Bologna, Anti-Fraud and Laboratory Office—Laboratory Section, DT VI, Italian Customs and Monopolies Agency, 40121 Bologna, Italy
Maria Scilinguo
Chemical Laboratory of Bologna, Anti-Fraud and Laboratory Office—Laboratory Section, DT VI, Italian Customs and Monopolies Agency, 40121 Bologna, Italy
Chiara Calvagna
Chemical Laboratory of Bologna, Anti-Fraud and Laboratory Office—Laboratory Section, DT VI, Italian Customs and Monopolies Agency, 40121 Bologna, Italy
Silvia Romano
Chemical Laboratory of Bologna, Anti-Fraud and Laboratory Office—Laboratory Section, DT VI, Italian Customs and Monopolies Agency, 40121 Bologna, Italy
Marco Polito
Chemical Laboratory of Bologna, Anti-Fraud and Laboratory Office—Laboratory Section, DT VI, Italian Customs and Monopolies Agency, 40121 Bologna, Italy
Salvatore Sgrò
Chemical Laboratory of Bologna, Anti-Fraud and Laboratory Office—Laboratory Section, DT VI, Italian Customs and Monopolies Agency, 40121 Bologna, Italy
Nuclear magnetic resonance (NMR) is a technique used for many years by chemists for elucidation of molecular structure. Technological progress over the years has enabled this technique, making it easier to use. Thus, the LF-NMR (low-field NMR) was introduced as a side technique, characterized by low management costs and shorter analysis time than its main counterpart. The application of 1H LF-NMR for the quantification of ethyl alcohol in different alcoholic matrices is herein described, comparing the results obtained with this technique with those determined by a reference gas chromatographic method.
