Cation exchange chromatography with both unsuppressed conductivity detection and indirect photometric (IPD) modes were used for the separation and detection of inorganic cations. Salt of weak base diphenylamine has been used as an eluent for several cations both with unsuppressed conductivity detection and IPD.
This thesis consists of the synthesis of new liquid crystalline compounds 2-thiobutanoyl-5-[4-(4´-methoxybenzylideneamino)phenyl]1,3,4-oxadiazole 1e, 4-[4´-methoxyben- zylideneamion)benzoyloxy]propylbenzoate 2d and two new homologous series derived from 2,5-bis-[4-amino phenyl]-1,3,4-oxadiazole 3d, these are 2,5-bis-[4-(4´-alkoxybenzylideneamino)phenyl]-1,3,4-xadiazole 3e1-3i1 and 2,5-bis-[4-(4´-alkoxybenzanilide)phenyl]-1,3,4-oxadiazole 3e2-3i2.(3e2,f2,g2,h2, i2
Derivatives of 1,3,4-thiadiazole ring show biological activities against different species of microbes, therefore mono- and poly-nuclear complexes of dithiocarbamate derivatives of 2-amino-5-mercapto-1,3,4-thiadiazole (AMT), have been prepared in an attempt to show the effect of introducing two centers in the structure of the ligand (NaMTD), as well as to investigate the coordination behavior of the ligand toward both transition metals and to compare the biological activity of the complexes with that of the ligand.Dithiocarbamate derivatives of AMT (NaMTD), were
