Theophylline analysis by reversed-phase high-pressure liquid chromatography: elimination of interferences

MeSH terms

• Ampicillin / isolation & purification
• Chromatography, High Pressure Liquid
• Humans
• Saliva / analysis
• Theophylline / analogs & derivatives
• Theophylline / analysis*
• Theophylline / blood
• Xanthines / isolation & purification