TY - RPRT TI - Diode array spectroscopy in pharmaceutical analysis: determination of acetaminophen/codeine phosphate tablets. AU - H Ueda AU - R Pereira-Rosario AU - C M Riley AU - J H Perrin PY - 1989 DO - 10.1016/0731-7085(89)80098-6 UR - https://pubmed.ncbi.nlm.nih.gov/2488632/ ID - 2488632 ER -