Table 6.
Calibration parameters (Retention times (RT), Retention indices (RI), Internal standards, Quantitation masses (m/z), Ion ratio masses, Expected ion ratios (m/z), Concentration ranges (in μg/L, unless otherwise noted), and Linear regression coefficients (r) for the analysis of volatile compounds in grape juice and berry skin, using GC-MS(TOF)-SPME.
Compound | Absolute R.T. (s) | RI (DB-Wax) a | Internal Standard | Quant Mass (m/z) | Ion Ratio Masses (m/z) | Expected Ion Ratio | Concentration Range (μg/L) | r |
---|---|---|---|---|---|---|---|---|
ethyl propanoate | 490 | 951 | ethyl butanoate-4,4,4-d3 | 57 | 57/102 | 12.3 | 3–54 | 0.9826 |
ethyl 2-methylpropanoate | 502 | 955 | ethyl butanoate-4,4,4-d3 | 88 | 88/116 | 1.50 | 4–95 | 0.9988 |
ethyl butanoate-4,4,4-d3 | 612 | 74 | 74/119 | 25.6 | ||||
ethyl butanoate | 617 | 1028 | ethyl butanoate-4,4,4-d3 | 88 | 88/116 | 18.3 | 2–96 | 0.9997 |
ethyl 2-methylbutanoate | 646 | 1050 | ethyl butanoate-4,4,4-d3 | 102 | 102/115 | 7.50 | 1–53 | 0.9965 |
ethyl 3-methylbutanoate | 675 | 1060 | ethyl butanoate-4,4,4-d3 | 88 | 85/88 | 0.900 | 2–101 | 0.9965 |
hexanal | 700 | 1084 | hexanol-d13 | 82 | 72/82 | 1.55 | 141–7053 | 0.9976 |
isoamyl acetate | 763 | 1117 | ethyl butanoate-4,4,4-d3 | 70 | 70/87 | 4.92 | 0.2–4 | 0.9958 |
(Z)-3-hexenal | 804 | 1146 | hexanol-d13 | 83 | 69/98 | 10.3 | 0.2–8 | 0.9914 |
β-myrcene | 865 | 1145 | hexanol-d13 | 93 | 93/136 | 28.0 | 2–49 | 0.9849 |
ethyl (E)-2-butenoate | 871 | 1151 | ethyl butanoate-4,4,4-d3 | 99 | 99/69 | 0.250 | 1–50 | 0.9694 |
(R)-(+)-limonene | 945 | 1201 | hexanol-d13 | 136 | 136/107 | 0.780 | 1–55 | 0.9942 |
isoamyl alcohol | 978 | 1205 | hexanol-d13 | 57 | 55/70 | 2.09 | 0.4–21 | 0.9974 |
(E)-2-hexenal | 978 | 1220 | hexanol-d13 | 98 | 83/98 | 3.83 | 8–397 | 0.9956 |
ethyl hexanoate | 1014 | 1220 | hexanol-d13 | 88 | 88/99 | 2.56 | 0.2–6 | 0.9912 |
2-octanone | 1155 | 1285 | hexanol-d13 | 58 | 71/128 | 4.49 | 2–100 | 0.9990 |
1-octen-3-one | 1186 | 1313 | hexanol-d13 | 97 | 70/97 | 5.01 | 0.5–4 | 0.9748 |
(E)-2-heptenal | 1238 | 1326c | hexanol-d13 | 83 | 83/112 | 20.3 | 0.5–26 | 0.9993 |
hexanol-d13 | 1278 | 64 | 64/78 | 3.37 | ||||
1-hexanol | 1308 | 1360 | hexanol-d13 | 84 | 69/84 | 7.20 | 80–3988 | 0.9973 |
(Z)-3-hexenol | 1374 | 1391 | hexanol-d13 | 67 | 67/82 | 3.22 | 16–834 | 0.9982 |
(E,E)-2,4-hexadienal | 1411 | 1379c | hexanol-d13 | 96 | 95/96 | 0.311 | 4–86 | 0.9936 |
(E)-2-hexen-1-ol | 1422 | 1377 | hexanol-d13 | 82 | 82/100 | 13.8 | 10–500 | 0.9981 |
ethyl octanoate-d15 | 1467 | 105 | 91/105 | 3.38 | ||||
ethyl octanoate | 1497 | 1436 | ethyl octanoate-d15 | 101 | 143/127 | 0.178 | 1–57 | 0.9947 |
1-octen-3-ol | 1520 | 1465 b | hexanol-d13 | 85 | 85/99 | 2.12 | 2–98 | 0.9976 |
1-heptanol | 1538 | 1467 | hexanol-d13 | 70 | 70/83 | 10.0 | 10–500 | 0.9988 |
(E,Z)-2,4-heptadienal | 1550 | 1480 b | hexanol-d13 | 81 | 81/110 | 6.18 | 0.5–25 | 0.9970 |
(E,E)-2,4-heptadienal | 1621 | 1482 c | hexanol-d13 | 110 | 81/95 | 18.5 | 3.5–173 | 0.9930 |
decanal | 1631 | 1484 | hexanol-d13 | 82 | 82/112 | 3.30 | 1–54 | 0.9891 |
linalool | 1727 | 1537 | hexanol-d13 | 121 | 121/93 | 0.183 | 0.4–21 | 0.9901 |
(E,Z)-2,6-nonadienal | 1811 | 1575 | hexanol-d13 | 70 | 70/94 | 12.0 | 0.4–11 | 0.9918 |
2-undecanone | 1823 | 1543 | hexanol-d13 | 71 | 71/170 | 15.1 | 0.6–30 | 0.9966 |
2-phenylacetaldehyde | 1912 | 1625 | 2-phenyl-d5-ethanol | 120 | 91/120 | 5.06 | 2–97 | 0.9964 |
α-terpineol | 2016 | 1688 | benzyl-2,3,4,5,6-d5 alcohol | 121 | 121/139 | 4.48 | 0.5–5 | 0.9845 |
β-citronellol | 2165 | 1762 | hexanol-d13 | 95 | 95/123 | 2.00 | 1–4 | 0.9731 |
nerol | 2229 | 1770 | hexanol-d13 | 123 | 93/121 | 0.506 | 4–20 | 0.9637 |
phenetyl acetate | 2233 | 1829 | 2-phenyl-d5-ethanol | 104 | 104/91 | 4.11 | 0.1–4 | 0.9959 |
hexanoic-d11 acid | 2251 | 63 | 64/93 | 0.457 | ||||
β-damascenone | 2254 | 1836 b | 2-phenyl-d5-ethanol | 121 | 121/190 | 4.48 | 1–50 | 0.9951 |
hexanoic acid | 2277 | 1863 b | hexanoic-d11 acid | 60 | 60/73 | 2.18 | 10–500 | 0.9916 |
α-ionone | 2334 | 1830 c | 2-phenyl-d5-ethanol | 192 | 121/192 | 9.94 | 1–25 | 0.9765 |
benzyl alcohol-d5 | 2355 | 96 | 96/113 | 0.210 | ||||
α-ionol | 2391 | [1923] b | 2-phenyl-d5-ethanol | 138 | 138/123 | 1.74 | 0.3–25 | 0.9975 |
2-phenylethanol-d5 | 2399 | 96 | 96/127 | 4.65 | ||||
2-phenylethanol | 2402 | 1925 | 2-phenyl-d5-ethanol | 91 | 91/122 | 5.43 | 2–104 | 0.9886 |
β-ionone | 2468 | 1947 | 2-phenyl-d5-ethanol | 177 | 177/192 | 18.5 | 0.1–3 | 0.9968 |
eugenol | 2849 | 2141 | 2-phenyl-d5-ethanol | 164 | 164/149 | 1.70 | 0.5–26 | 0.9803 |
4-vinylguaiacol | 2867 | 2198 | 2-phenyl-d5-ethanol | 150 | 135/150 | 1.21 | 0.05–2 | 0.9905 |