RT Journal Article SR Electronic T1 A Rapid Method for the Simultaneous Determination of Major Organic Acids and Sugars in Grape Musts JF American Journal of Enology and Viticulture JO Am J Enol Vitic. FD American Society for Enology and Viticulture SP 176 OP 177 DO 10.5344/ajev.1982.33.3.176 VO 33 IS 3 A1 J. E. Marcy A1 D. E. Carroll YR 1982 UL http://www.ajevonline.org/content/33/3/176.abstract AB Major organic acids (tartaric and malic acids) and major sugars (fructose, glucose, and sucrose) of grape musts were converted to trimethylsilyl (TMS) ethers followed by separation with gas-liquid chromatography. This method provides a rapid, simultaneous determination of these compounds in grape musts. Sample preparation prior to derivization is minimal because of the comparatively low concentration of possible interfering substances in grape must. Multiple peaks were eliminated by producing oximes of the sugars present. Tartaric acid, malic acid, fructose, glucose, and sucrose were all linear in response when measured from 0.5 to 6.0 mg/ mL. Good agreement was found with the ± 3.0% reproducibility reported for use of this method for sugars alone.