2023. Spectrophotometric Determination of Micro Amount of Chromium (III) Using Sodium 4-((4,5-diphenyl-imidazol-2-yl)diazenyl)-3-hydroxynaphthalene-1-sulfonate in the Presence of Surfactant, Study of Thermodynamic Functions and Their Analytical Applications. Baghdad Science Journal. 20, 4 (Aug. 2023), 1331. DOI:https://doi.org/10.21123/bsj.2023.7393.