Spectrophotometric Determination of Vitamin B1 (Thia min Hydrochloride)In Pharmaceutical Preparation by Coupling Reaction with Diazotized Sulfanilic acid. Tikrit J. Pharm. Sci. [Internet]. 2023 Mar. 27 [cited 2026 Jun. 5];1(2):1-8. Available from: https://tjphs.tu.edu.iq/index.php/j/article/view/39