title: Alcohol determination using an acoustic wave sensor.
abstract: An acoustic wave methodology was developed to quantify alcohols in aqueous solutions. The frequency at minimum impedance of a bare quartz crystal in contact with ethanol solutions was found to be a suitable parameter to quantify ethanol. Ethanol in several Portuguese white wines was analyzed both by the proposed methodology and by the usual areometric method with no statistically significant differences (alpha = 0.05) in precision or accuracy of the results.
authors.affiliation: Department of Chemistry, University of Aveiro, Portugal. mtgomes@dq.ua.pt
authors.forename: M T
authors.initials: MT
authors.lastname: Gomes
authors.forename: M I
authors.initials: MI
authors.lastname: Veríssimo
authors.forename: J A
authors.initials: JA
authors.lastname: Oliveira
mesh_terms: D004563:Electrochemistry / Q000379:methods; D000431:Ethanol / Q000032:analysis*; D011174:Portugal; D015203:Reproducibility of Results; D014920:Wine / Q000032:analysis*
chemical_list: D000431:Ethanol