TY - GEN AU - Elsayed,M A AU - Abdine,H AU - Elsayed,Y M TI - Spectrophotometric determination of theophylline formulations SN - 0022-3549 PY - 1979///0226 KW - Aminophylline KW - analysis KW - Drug Combinations KW - Mathematics KW - Methods KW - Phenobarbital KW - Piperazines KW - Solutions KW - Spectrophotometry, Ultraviolet KW - Tablets KW - Theophylline KW - analogs & derivatives N1 - Publication Type: Journal Article UR - https://doi.org/10.1002/jps.2600680107 ER -