Table 2.

Pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS) analysis of GTTE at 380 °C.

No.	Rt (min)a	Compound	CAS No.	Content (%) b	SI c
1	1.342	Ethylamine	75-12-7	16.73	94
2	1.415	5-Amino-6-nitroso-2,4(1H,3H)-pyrimidin	0-00-0	7.02	95
3	1.466	Ethanol	64-17-5	10.45	97
4	1.565	3-oxo-Butanenitrile	0-00-0	9.97	92
5	1.879	2,3-Butanedione	431-03-8	2.04	98
6	2.048	Acetic acid	64-19-7	11.82	97
7	2.340	Furan	1708-29-8	0.45	79
8	2.390	1-hydroxy-2-Propanone	116-09-6	4.77	98
9	2.717	2,3-Pentanedione	600-14-6	0.48	95
10	2.810	Propanoic acid	79-09-4	0.26	83
11	2.878	3-hydroxy-2-Butanone	513-86-0	0.43	95
12	2.920	2,4-Dimethylfuran	3710-43-8	0.43	89
13	5.622	2-Furanmethanol	98-00-0	0.91	96
14	5.904	1-(acetyloxy)-2-Propanone	592-20-1	0.60	97
15	9.273	Phenol	108-95-2	0.58	95
16	10.055	5-Methyl-5,6-dihydro-2(1H)-pyridinone	0-00-0	0.16	86
17	11.544	Cyclopropyl carbinol	2516-33-8	0.32	88
18	12.778	Xanthine riboside	146-80-5	0.36	89
19	14.444	Methyl pentadecyl ether	0-00-0	0.40	72
20	14.552	2-[(tetrahydro-2H-pyran-2-yl)oxy]- Propanoic acid	87930-86-7	0.50	78
21	14.850	2,5-Monomethylene-l-rhamnitol	0-00-0	0.31	68
22	17.425	1,1′-oxybis-Octane	629-82-3	0.33	92
23	17.563	1-Tetradecanol	112-72-1	0.37	86
24	18.291	Octanoic acid, octyl ester	2306-88-9	0.11	92
25	19.013	Caffeine	58-08-2	29.47	95
26	19.595	Dibutyl phthalate	84-74-2	0.39	95
27	20.412	1-Hexadecanol	36653-82-4	0.11	92
28	20.935	Propionic acid, 3,3′-thiodi-, didodecyl	123-28-4	0.03	68
29	21.256	Octanoic acid, 4-pentadecyl ester	0-00-0	0.03	76
30	22.192	Hexanedioic acid, bis(2-ethylhexyl) ester	103-23-1	0.04	90
31	22.813	Oxalic acid, 2-ethylhexyl isohexyl ester	0-00-0	0.04	83
32	23.050	Diisooctyl phthalate	131-20-4	0.05	92
33	23.418	Heptyl tetracosyl ether	0-00-0	0.04	78

Note.

^aRt, retention time of pyrolytic product.

^bThe relative contents of pyrolytic products were calculated by peak area normalization, and results are expressed as the ratio of single constituent area to total area.

^cSI, index of similarity.