Table 10 Results on similarity and apparent abundance (R) of GC–MS fingerprint chromatogram, HPLC characteristic fingerprint chromatogram, and quality evaluation of A. sinensis wood samples and agarwood reference drug.

Group	No.	Sample tag	GC–MS fingerprint chromatogram			HPLC characteristic fingerprint chromatogram	Quality evaluation
Group	No.	Sample tag	Similarity	R^a	Total peak area (× 10⁸)	Similarity	Moisture (%)	EEC (%)	Colour-reaction value assignment^b	Agarotetrol (%)
Experimental	1	F1-1	0.811	1.42	25.6	0.931	5.78	6.08	0	0.23
	2	F1-2	0.806	1.6	15.1	0.896	5.94	4.63	0	0.02
	3	F1-3	0.64	4.76	10.7	0.903	5.12	14.77	0	0.27
	4	N1-1	0.934	2.33	44.8	0.885	5.29	12.83	2	0.86
	5	N1-2	0.903	1.63	67.3	0.96	4.35	13.81	3	0.19
	6	N1-3	0.943	1.92	13	0.941	4.72	15.97	3	0.33
Negative control	7	F2-1	0.663	1.64	6.07	0.816	6.21	7.5	0	0.1
	8	F2-2	0.708	1.32	6.97	0.694	6.29	7.22	0	0.1
	9	F2-3	0.757	1.37	6.54	0.805	6.19	6.9	0	0.09
	10	N2-1	0.884	0.8	13.5	0.835	4.09	10.19	1	0.16
	11	N2-2	0.659	0.71	36	0.76	4.82	10.85	1	0.15
	12	N2-3	0.911	1.2	10.5	0.814	5.26	9.52	1	0.18
Blank control	13	F3-1	0.049	4.3	1	0.039	6.59	5.03	0	0.01
	14	F3-2	0.06	2.6	1.05	0.127	5.75	4.74	0	0.05
	15	F3-3	0.205	3.67	1.21	0.046	6.14	3.51	0	0.02
	16	N3-1	0.019	4.32	2.53	0.638	5.93	3.95	0	0.02
	17	N3-2	0.022	4.98	0.57	0.073	6.17	4.58	0	0.02
	18	N3-3	0.096	5.8	1.13	0.063	6.13	4.37	0	0.02
Reference	19	^CDZYC	1	1.05	33.1	1	–	–	–	0.38

^aR (apparent abundance) = A_{139–220 min}/A_{0–139 min}. The ratio of sum peak area in the range of 139–220 min range of individual agarwood and that in the range of 0–139 min.
^bColour reaction value assignment: Purple = 4, dark cherry red = 3, cherry red = 2, pale cherry red = 1, other colour = 0.
^cDZYC: agarwood reference drug.

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