Table 3.

A comparison of the mean δ¹³C, δ¹⁵N, and δ²H values and standard deviations in gelatin samples and bone raw materials from different regions.

Sample		δ13C (‰)	Δ13C	δ15N (‰)	Δ15N	δ2H (‰)	Δ2H
GX	Bone	−13.35 ± 2.54		6.08 ± 0.89		−61.09 ± 5.95
	Gelatin	−12.27 ± 2.63	1.08	6.52 ± 0.88	0.44	−52.98 ± 3.90	8.11
NMG	Bone	−17.75 ± 3.71		5.96 ± 0.90		−82.86 ± 6.49
	Gelatin	−17.25 ± 4.04	0.50	6.38 ± 0.91	0.42	−84.19 ± 8.76	−1.33
SD	Bone	−13.34 ± 0.94		3.60 ± 0.81		−72.87 ± 2.40
	Gelatin	−13.27 ± 0.98	0.07	4.20 ± 0.91	0.60	−62.94 ± 3.97	9.93

The symbol Δ represents the difference in δ¹³C, δ¹⁵N, and δ²H values between the gelatin samples and bone raw materials.