Removal of methylene blue (MB) using activated carbon prepared from hazelnut husk by potassium carbonate (HHPCAC) chemical activation was investigated batchwise. In order to optimize the process, the effect of pH, contact ...

extraction-preconcentration procedure was developed by using a salicylaldehyde modified polyamine polyurea resin as solid phase adsorbent for the determination of Ni(II) and Cu(II) ions at trace level in waters by flame ...