Table 5.
Correlation comparison of quantitative results by two methods (headspace, HS) versus direct injection (DI) for the analyses of seven fusel oil analytes in distilled spirits (n = 26).
| Analyte (n) | R2 | Slope (m) | Intercept (b) | Range (HS) | Range (DI) |
|---|---|---|---|---|---|
| Methanol | 0.8910 | 0.7553 | 0.0019 | Not detected (ND) – 0.15 % | ND - 0.12 % |
| Ethyl Acetate | 0.9768 | 0.8752 | 0.1416 | 2.1 mg/L – 546.1 mg/L | ND – 529.0 mg/L |
| n-Propanol | 0.9271 | 1.0283 | −10.7200 | ND – 296.5 mg/L | ND – 338.1 mg/L |
| Isobutanol | 0.9851 | 0.8679 | −0.7119 | ND – 1235.2 mg/L | ND – 1100.7 mg/L |
| n-Butanol | 0.9776 | 0.9071 | 0.0058 | ND – 15.2 mg/L | ND – 12.8 mg/L |
| Amyls (Active + Isoamyl) | 0.9865 | 0.8813 | −2.8472 | ND – 2350.7 mg/L | ND – 2242.9 mg/L |