S. Othman, N., H. Hasan, S. and M. Surchi, K. 2020. Using of Diazotized 2,4-Dinitroaniline in Spectrophotometric Estimation of Phenylephrine Hydrochloride. Rafidain Journal of Science. 29, 3 (Sep. 2020), 37–46. DOI:https://doi.org/10.33899/rjs.2020.166310.