Table 2. Metal content of TTHA1623.

Each value represents the mean ± standard deviation (n = 3).

Metal ion	Moles of metal per mole of TTHA1623
Fe	1.7 ± 0.0
Mn	0.068 ± 0.001
Zn	0.043 ± 0.002
Cu	0.011 ± 0.000
Mg	<0.010
Al	<0.010
Ca	<0.010
Ni	<0.010