Spectrophotometric flow injection determination of ethanol in distilled spirits and wines involving permeation through a silicon tubular membrane - Mattos, Ivanildo L; Sartini, Raquel P; Zagatto, Elias Ayres Guidetti; Reis, Boaventura Freire dos; Giné-Rosias, Maria Fernanda Georgina (Analytical Sciences, 1998)