to investigate the possibility of the

simultaneous of Fe (II) and Fe (III) or selective determination of Fe (III) in the presence of

Fe (II) by using HPSAM.

The method was based on the difference in the rate of two processes...

DFT calculations, at B3LYP level in gas phase, have been performed on these structures. All computations were performed using the Gaussian 03 and AIM software. Natural bond orbital(NBO), atoms in molecule (AIM), surface ...