Solid phase extraction of copper traces using poly(styrene-divinylbenzene) membrane disks modified with pyridoxal salicyloylhydrazone in water samples

► A solid phase extraction-FAAS determination for Cu analysis in water is proposed. ► The selective extraction and preconcentration of Cu traces from water are possible. ► The useful of PSH as a selective modifying agent of the SDB membrane disk is showed.