A master's dissertation was discussed in the College of Science, University of Anbar on analytical spectroscopic of some palladium, ruthenium and vanadium compounds with the selected bidentate by the postgraduate student, Mrs. Zainab Abd Mejbel. The dissertation aimed at preparing eight metallic complexes from the interaction of the elemental salts (palladium, ruthenium and vanadium) with mixed lycandes of ethylene di-amine dihydrochloric and di-aminobenzoic acid. The dissertation reviewed diagnosing the prepared complexes with techniques such as (ultraviolet - visible, infrared, mass spectrometry, molar conductivity and microelement analysis). The dissertation concluded that easy and sensitive analytical methods were found to estimate the three elements, as the prepared complexes gave a linear relation that obeys the Lambert - Beer law through calculating the detection limit, quantity limit, sandell sensitivity, recall rate, error ratio and standard deviation.