Journal of Analytical Methods in Chemistry

Research Article

The Verification of the Usefulness of Electronic Nose Based on Ultra-Fast Gas Chromatography and Four Different Chemometric Methods for Rapid Analysis of Spirit Beverages

Table 2

Key chemical compounds (variables), which are important for sample discrimination.
Number of variables from – 1 or 2 columnName of the compoundType of sample (raw spirit, vodka, whisky without corn, and whisky with corn)
1—1tert-ButylmethyletherAll
2—1Ethyl acetateAll
3—12-Methyl-1-butanolAll
4—1 2-Methyl-1-propanolRaw spirit, whisky without corn, and whisky with corn
5—1n-ButanolRaw spirit, whisky without corn, and whisky with corn
6—12,3-PentanedioneRaw spirit
7—1Methyl butanoateRaw spirit, whisky without corn, and whisky with corn
8—1PentanolRaw spirit, whisky without corn, and whisky with corn
9—11-HexanolAll
10—1(Z)-4-HeptenalRaw spirit and whisky without corn
11—2Diethyl etherRaw spirit, whisky without corn, and whisky with corn
12—22-MethylfuranRaw spirit, whisky without corn, and whisky with corn
13—22-Methyl-1-propanolRaw spirit, whisky without corn, and whisky with corn
14—2Ethyl acetateAll
15—2Methyl butanoateRaw spirit, whisky without corn, and whisky with corn
16—2Propyl acetateRaw spirit, whisky without corn, and whisky with corn
17—21-Hydroxy-2-propanoneRaw spirit
18—21-Hexen-3-olRaw spirit, whisky without corn, and whisky with corn
19—22-MethylthiopheneRaw spirit
20—2PentanolRaw spirit, whisky without corn, and whisky with corn
21—23-Methylbut-2-en-1-olVodka
22—2(Z)-3-Hexen-1-olRaw spirit, whisky without corn, and whisky with corn