A new joint research paper has been published by Dr. Diaa Al-Sabha, a professor at Alnoor University.

Assistant professor Dr. Theia'a Najim Abdullah Al-Sabha a faculty member in the Department of Optics Technologies at the College of Health and Medical Technologies, Alnoor University, has published a joint research paper with Dr. Mohammed Salem Al-Enezi, a faculty member in the Department of Chemistry at the College of Education for Women, University of Mosul. The paper is titled:
Application of the H-Point
 Standard Addition Method for Simultaneous Spectrophotometric Determination of Isoniazid and Mesalazine via Charge-Transfer Complex Formation Reactions
The research was published in the Russian Journal of Analytical Chemistry, which is included in the Scopus catalogue
Journal of Analytical Chemistry
The research involved the application of the H-Point Standard Addition Method (HPSAM) for the spectrophotometric determination of isoniazid and mesalazine in mixtures. This was achieved through the formation of n-π charge-transfer complexes between the drugs and the reagent ortho-chloranil in an aqueous medium. The method was successfully applied to the estimation of the two drugs in both their pure forms and their pharmaceutical formulations (tablets and capsules), demonstrating high selectivity and reliability.