TY - GEN AU - Manion,C V AU - Shoeman,D W AU - Azarnoff,D L TI - High-pressure liquid chromatographic assay of theophylline in biological fluids PY - 1975///0423 KW - Absorption KW - Caffeine KW - analysis KW - Chemical Phenomena KW - Chemistry KW - Chromatography KW - methods KW - Drug Stability KW - Humans KW - Hydrogen-Ion Concentration KW - Oxazepam KW - Pressure KW - Spectrophotometry, Ultraviolet KW - Temperature KW - Theophylline KW - Time Factors KW - Xanthines N1 - Publication Type: Journal Article UR - https://doi.org/10.1016/s0021-9673(01)94742-9 ER -