Spectrophotometric Determination Of Anti-Ulcer Drug (Cimetidine) By 2.4-Dinitrophenylhydrazine Reagent. Journal of Pharmaceutical Negative Results [Internet]. 2022 Oct. 4 [cited 2026 Jun. 22];:192-9. Available from: https://www.pnrjournal.com/index.php/home/article/view/1218