Table 3: Arsenic moles adsorbed on iron species (N).

Sample (mmol/L) (mmol/L)W (grs)N (mmol/gr)

10.0133470.00020.0284350.161827
20.0266950.00060.0336580.270655
30.0667370.00090.0255340.901994
40.0934320.00200.0237931.344981
50.1735180.00490.0278552.118223
60.2669510.01260.0290163.067147
70.4004270.01680.0435233.084857