Chromatographic separation and determination of some cations by unsuppressed conductivity and indirect photometric methods
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Chemistry - Sciene
Construction of Oxymetazoline Hydrochloride Selective Electrodes and Determination of Oxymetazoline in Pharmaceutical Drugs
Oxymetazoline hydrochloride ion selective electrodes were constructed. Construction was based on drug complex formation with dodeca-tungstophosphoric acid as ionophor and many plasticizer: Di –butyl phthalate (DBPH), Tri- butyl phosphate (TBP), O- nitrophenyloctylether (ONPOE), Di- octyl phthatale (DOP) in PVC matrix membranes. The matrix membrane was formed by mixing plasticizer and drug complexes with PVC.
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Synthesis, Characterization and Study of the Electrical Properties of Some Aromatic Schiff-base Ligands and Their Cu, Ni and Co Coordination Polymers
Four tetradentate ligands were prepared by reacting salicylaldehyde with different aromatic diamines in acidic medium (Schiff-base reaction). F.T.IR, 1H-NMR and Maldi- MS techniques were employed to identify the L1 (1,4-bis(N-o-hydroxybenzylidine)phenylene diamine)and L2 (4,4-bis(o-hydroxybenzylidene)biphenyl- amine) molecules, while only F.T.IR and 1H-NMR spectra were used in the identification of L3 (4,4-bis(o-hydroxybenzylidene)methylene-dianiline)molecules.
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