[Determination of the alcohol level of alcoholic beverages with the Technicon thermometric autoanalyser].
Thermometric analyses consists in measuring the enthalpy variations of chemical reaction. The dilution of an hydroalcoholic solution in a aqueous solution of sodium perchlorate is an endothermal reaction, and the variations of temperature within certains limits are functions of the initial alcohol concentration. The variations are collected, amplified and recorded on a diagram. This has been done in the quality control laboratory of our company with a Technicon apparatus to determine the alcoholic strength of spirits at 45 degrees. In industrial use one needs only to compare the height of the peaks corresponding to the product being analysed with the check sample peaks. This quick and precise process, of a great simplicity of utilisation makes it possible to discard the distillation method.
D000434:Alcoholic Beverages / Q000032:analysis* / Q000592:standards; D001322:Autoanalysis / Q000295:instrumentation / Q000379:methods; D000431:Ethanol / Q000032:analysis*; D011786:Quality Control
D000431:Ethanol
Détermination du titre alcoométrique des boissons alcoolisées au moyen de l'auto-analyseur thermométrique Technicon.