Table 8.

Results of ICP-MS analysis on powdered collagen from chicken feet.

Elements	Ash Content (µg/g) *	Total in Collagen (mg/100 g)
Li	0.050	2.10−4
Be	0.090	4.10−4
B	0.050	2.10−4
Na	5938	28.55
Mg	1834	8.817
Al	10.44	0.050
Si	22.53	0.108
P	168.1	0.808
S	1505	7.236
K	853.9	4.105
Ca	1692	8.136
Ti	2.060	0.010
V	0.010	5.10−5
Cr	<dl	-
Mn	0.100	5.10−4
Fe	3.210	0.015
Co	<dl.	-
Ni	0.150	7.10−4
Cu	1.350	0.006
Zn	<dl	-
Br	5.700	0.027
Sr	3.810	0.018
Ag	1.300	0.006
Cd	<dl	-
Sn	0.140	6.10−4
Ba	1.970	0.009
Pb	14.54	0.070

<d.l. = below detection limit. * average of 6 analyses of three batches under optimal extraction conditions.