Ni2+, Co2+ and Zn2+ in real samples has been reported. The method is based on the
adsorption of analytes on bis salicyl aldehyde, 1, 3 propan diimine (BSPDI) loaded on
activated carbon. The adsorbed metals on modified activated carbon were eluted using 8mL
of 2molL− 1 nitric acid in acetone or 10mL of 4molL− 1 HNO3. The influences of the
analytical parameters including pH and sample volume were investigated. The effects of …