- Turkish Journal of Chemistry
- Vol: 26 Issue: 4
- Solid-Phase Extraction of Copper with Lead 4-benzylpiperidinedithiocarbamate on Microcrystalline Nap...
Solid-Phase Extraction of Copper with Lead 4-benzylpiperidinedithiocarbamate on Microcrystalline Naphthalene and its Spectrophotometric Determination
Authors : Hasan Cesur, Bekir Bati
Pages : 599-606
View : 9 | Download : 4
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :Using lead 4-benzylpiperidinedithiocarbamate complex (Pb(4-BPDC)2), a solid-phase extraction method was developed for pre-concentration and spectrophotometric determination of copper in water samples. In this method, copper in large volume liquid phase quantitatively replaces lead on colorless Pb(4-BPDC)2 complex and naphthalene solid phase mixture forming Cu-4-benzylpiperidinedithiocarbamate complex (Cu(4-BPDC)2). The solid phase containing colored Cu(4-BPDC)2 is dissolved in chloroform and its absorbance is measured at 437 nm against the reagent blank. The range of linearity is 0.4 -10 m gml-1 of copper in chloroform, the molar absorptivity of the complex determined from the linear portion of Beer's law plot is 8.197x103 lmol-1cm-1 and the sensitivity is 0.0013 m gcm-2 for an absorbance of 0.001.Keywords : Solid-phase extraction, copper, 4-benzylpiperidinedithiocarbamate, UV-VIS spectrophotometry, microcrystalline naphthalene.