MOHAMMED QASIM AL-SAMMARAEE; KHLAF FARIS AL-SAMMARAEE. Determination Micro Spectrohotometric of Pyridoxine Hydrochloride and Nicotinamide via Derivative Spectrophotometry First and Second. Tikrit Journal of Pure Science, [S. l.], v. 22, n. 12, p. 79–90, 2023. DOI: 10.25130/tjps.v22i12.934. Disponível em: https://tjps.tu.edu.iq/index.php/tjps/article/view/934. Acesso em: 19 2024.