Method principle: This method uses DNP packed column, GC900B (A) gas chromatograph, hydrogen flame ionization detector to detect, n-butyl acetate as an internal standard to quantify the content of alcohol ester in liquor. Determination components: acetaldehyde, methanol, ethyl acetate, n-propanol, sec-butanol, acetal, isobutanol, n-butanol, ethyl butyrate, isoamyl alcohol, ethyl valerate, ethyl lactate , Ethyl hexanoate. Detection conditions: column temperature 90 ° C, detector 135 ° C, vaporization chamber 135 ° C, carrier gas flow rate 30ml / min, quantified by internal standard method. The internal standard is n-butyl acetate.
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