title: Reversed phase ion pair chromatography with an adsorbing stationary phase and a hydrophobic quaternary ammonium ion in the mobile phase. Part II: quantitative analysis of multi-component analgesic pharmaceutical preparations.
mesh_terms: D000700:Analgesics / Q000032:analysis*; D002852:Chromatography, Ion Exchange / Q000295:instrumentation / Q000379:methods*; D007202:Indicators and Reagents; D013607:Tablets
chemical_list: D000700:Analgesics; D007202:Indicators and Reagents; D013607:Tablets