Chromatographic techniques are expected to provide accurate methods for determining ethanol in alcoholic
beverages. Reversed-phase high-performance liquid chromatography (RP-HPLC) can produce higher resolution in the separation of organic compounds, and so is employed as an analytical technique in a wide variety of chemical laboratories. In the determination of ethanol in alcoholic beverages, the detection method of ethanol is a technical problem. A differential refractive index detector can be used for detecting ethanol [2], whereas its stability for detecting analytes is sensitive to the atmospheric temperature. The conductometric detection of ethanol in alcoholic
beverages has also been developed, where an electrolyte solution was used as a mobile phase [3]