The copper and nickel complexes of tetradentate ligands bis(salicylaldehyde) phenylpropylenediimine (H2SAzPP) and bis-( o-hydroxylacetophenone )phenylpropylenediimine (HzHAzPP) and copper(II), nickel(II) and palladium(II) complexes of bis (benzoylacetone) phenylethylenediimine (HillAzPE) and bis( o-hydroxyacetophenone) phenylethylenediimine (HzHAzPE) have been prepared and their structure is elucidated using IR, UV, IH NMR and mass spectroscopic techniques. The metal complexes are less sensitive for spectrophotometric determination of metal ions, but show high value of molar absorptivities in UV regions, which enabled to use UV -detector with HPLC system for separation of copper and nickel, and copper, nickel palladium complexes at ng levels. The separation is achieved on 25Ox4mm column packed with Licrosorb Si 100, 5# using isocratic elution with mixture of chloroform-n-hexane. Detection was achieved within 290-310 nm using UV detector, linear calibration range were found in the ng levels and detection limits at sub ng levels of metal ions.
A K TALPUR ,G O KHASKHELI ,M Y KHUHAWAR ,
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