A Comparison of Two Methods for Quantitative Analysis on Ethanol Content： Gas Chromatography Method and Potassium Dichromate Colorimetric Method
Abstract：Two common quantitative analysis methods on ethanol content,including gas chromatograpy（GC） method and potassium dichromate colorimetric method,are compared when they are applied to analyze the standard solution with certain ethanol concentration and fermentation liquor with unknown ethanol concentration.The analysis results show the GC method is more accurate and comes up with higher cost in quantitatively analyzing the ethanol concentration of fermentation liquor;and that the potassium dichromate colorimetric method can be applied as a cheaper alternative method to GC method in batch quantity analysis on ethanol contents of fermentation liquors.
Keywords：gas chromatograpy（GC） methodpotassium dichromate colorimetric methodquantitative analysis
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 64-68 )