Table 2.

Characterization of trace constituents in HA-SRM detected using inductively coupled plasma mass spectroscopy

Trace constituent	Mass fraction (%)	Number of ions/HA-SRM unit cell
Al3+	0.0029	0.00110
Ba2+	0.0024	0.00018
B3+	0.0015	0.00142
Mg2+	0.0029	0.00122
Na+	0.0031	0.00138
Sr2+	0.0044	0.00051
Zn2+	0.0009	0.00014
Sum	0.0181	0.00595
Si	0.0150	0.00546

Adapted from Ref. [172].