Journal of Analytical Methods in Chemistry

Research Article

Gas Chromatographic-Ion Mobility Spectrometry Combined with Chemometrics to Study the Changes in Characteristic Odor Components of Galli gigerii Endothelium Corneum in Different Processing Methods

Table 2

Qualitative analysis of volatile substances in different processed products of GGEC.


Count	Compounds	CAS	Formulas	MW	RI	Rt (sec)	Dt (RIPrel)	Notes

1	n-Nonanal	C124196	C₉H₁₈O	142.2	1107.1	530.459	1.964	D
2	(E)-2-Octenal	C2548870	C₈H₁₄O	126.2	1064.6	456.435	1.343	M
3	(E)-2-Octenal	C2548870	C₈H₁₄O	126.2	1061	450.659	1.835	D
4	2-Ethyl-1-hexanol	C104767	C₈H₁₈O	130.2	1043.7	423.884	1.797	D
5	Beta-ocimene	C13877913	C₁₀H₁₆	136.2	1030.8	404.985	1.700
6	(Z)-3-Octen-1-ol	C20125842	C₈H₁₆O	128.2	1046.8	428.610	1.307
7	2-Ethyl-1-hexanol	C104767	C₈H₁₈O	130.2	1045.8	427.034	1.426	M
8	Hexyl acetate	C142927	C₈H₁₆O₂	144.2	1007.9	373.485	1.417
9	2-Pentyl-furan	C3777693	C₉H₁₄O	138.2	991.9	354.060	1.262
10	Trimethylpyrazine	C14667551	C₇H₁₀N₂	122.2	1012.2	379.259	1.163
11	1-Octen-3-ol	C3391864	C₈H₁₆O	128.2	983.9	346.185	1.166	M
12	Benzaldehyde	C100527	C₇H₆O	106.1	965.3	328.335	1.153	M
13	Octanal	C124130	C₈H₁₆O	128.2	1005.5	370.335	1.841
14	Alpha-phellandrene	C99832	C₁₀H₁₆	136.2	988.2	350.384	1.699
15	(E)-2-Heptenal	C18829555	C₇H₁₂O	112.2	961.4	324.660	1.682
16	1-Octen-3-ol	C3391864	C₈H₁₆O	128.2	983.4	345.660	1.617	D
17	Benzaldehyde	C100527	C₇H₆O	106.1	961.9	325.185	1.482	D
18	2-Heptanone	C110430	C₇H₁₄O	114.2	886.2	262.815	1.272	M
19	Heptanal	C111717	C₇H₁₄O	114.2	905.5	276.990	1.339
20	2-Heptanol	C543497	C₇H₁₆O	116.2	897.3	270.585	1.708
21	2-Heptanone	C110430	C₇H₁₄O	114.2	889.4	264.914	1.642	D
22	2-Methylpyrazine	C109080	C₅H₆N₂	94.1	829.9	229.005	1.089
23	3-Hexen-1-ol	C928961	C₆H₁₂O	100.2	854.3	243.075	1.511
24	2-Hexanol	C626937	C₆H₁₄O	102.2	793.3	209.370	1.576
25	2,3-Butanediol	C513859	C₄H₁₀O₂	90.1	790.2	207.795	1.373
26	2-Butanone	C78933	C₄H₈O	72.1	577.3	131.040	1.254
27	Butanal	C123728	C₄H₈O	72.1	601	137.340	1.299
28	Ethyl acetate	C141786	C₄H₈O₂	88.1	606.7	138.915	1.349
29	2-Methylbutanal	C96173	C₅H₁₀O	86.1	649.3	151.200	1.406
30	1,4-Dioxane	C123911	C₄H₈O₂	88.1	701.5	168.525	1.328
31	1,2-Dimethoxyethane	C110714	C₄H₁₀O₂	90.1	647.2	150.569	1.314
32	Ethanol	C64175	C₂H₆O	46.1	453.1	102.375	1.131
33	2-Octanol	C123966	C₈H₁₈O	130.2	986	348.180	1.439
34	(E)-2-Hexenal	C6728263	C₆H₁₀O	98.1	830.1	229.109	1.187
35	Butanoic acid	C107926	C₄H₈O₂	88.1	809.9	218.085	1.156
36	2-Methylpropanoic acid	C79312	C₄H₈O₂	88.1	763	194.775	1.159
37	Decanal	C112312	C₁₀H₂₀O	156.3	1206.8	754.529	1.54
38	2-Phenylethanol	C60128	C₈H₁₀O	122.2	1109.2	534.450	1.523
39	2-Phenylacetaldehyde	C122781	C₈H₈O	120.2	1043.2	423.150	1.25
40	Heptanol	C53535334	C₇H₁₆O	116.2	979	341.355	1.388
41	Isoamyl acetate	C123922	C₇H₁₄O₂	130.2	889.3	264.810	1.756
42	2-Methylbutanoic acid	C116530	C₅H₁₀O₂	102.1	846.3	238.350	1.467
43	Pentanoic acid	C109524	C₅H₁₀O₂	102.1	915.2	284.759	1.224
44	Thiazole	C288471	C₃H₃NS	85.1	744.5	186.480	1.261
45	2-Methylpropanol	C78831	C₄H₁₀O	74.1	624.3	143.849	1.171
46	2,3-Butanedione	C431038	C₄H₆O₂	86.1	564.3	127.679	1.161
47	Linalool	C78706	C₁₀H₁₈O	154.3	1102.9	522.690	1.226
48	Styrene	C100425	C₈H₈	104.2	889.9	265.229	1.514
49	n-Nonanal	C124196	C₉H₁₈O	142.2	1100.8	518.700	1.483	M
50	Cyclohexanone	C108941	C₆H₁₀O	98.1	887.7	263.759	1.462
51	2-Ethyl pyrazine	C13925003	C₆H₈N₂	108.1	913	282.975	1.52
52	Ethyl propionate	C105373	C₅H₁₀O₂	102.1	693.5	165.375	1.442
53	(Z)-3-Hexenyl acetate	C3681718	C₈H₁₄O₂	142.2	1002.3	366.240	1.802
54	Ethyl 2-hydroxypropanoate	C97643	C₅H₁₀O₃	118.1	810.5	218.400	1.541
55	Butyl acetate	C123864	C₆H₁₂O₂	116.2	795.3	210.420	1.62

Note. RI is the retention index, Rt is the retention time, Dt is the migration time, and (RIP rel) is the normalization treatment. D is a dimer, and M is a monomer. The sequence numbers of components in Figures4–7 are the same as those in the table.