SALEEM, P.H. 2021. THE SPECTROPHOTOMETRIC DETERMINATION OF CHROMIUM (VI) USING N, N-DIETHYL-P-PHENYLENEDIAMINE IN SYNTHETICALLY PREPARED WASTEWATER, AND TAP WATER. Journal of Duhok University. 24, 1 (Apr. 2021), 46-53. DOI:https://doi.org/10.26682/sjuod.2021.24.1.7.