Table 2: ICP results.

SampleTime/weeksSiCaPFe

Mg10.12944.742.08
20.3100.0320.21
41.080103.990.0140.01

Ca10.13748.4302.05
245.970.0230.03
40.01060.640.070.08

Mn10.13149.662.88
257.543.4550.11
40.7700.660.02

Cu10.15756.526.08
235.930.0150.09
40.61089.310.0020.05

Zn10.12454.162.17
233.651.680.01
43.31051.6210.0100.02

Ce10.32245.021.39
266.404.762.29
40.12078.030.090.04