title: Studies on ion pair extraction in the low concentration range wih applications to the bioanalysis.
mesh_terms: D001463:Barbiturates; D002623:Chemistry Techniques, Analytical; D002626:Chemistry, Pharmaceutical; D002852:Chromatography, Ion Exchange; D005470:Fluorometry; D007202:Indicators and Reagents; D007477:Ions / Q000302:isolation & purification*; D010423:Pentazocine; D004364:Pharmaceutical Preparations / Q000032:analysis*; D000644:Quaternary Ammonium Compounds
chemical_list: D001463:Barbiturates; D007202:Indicators and Reagents; D007477:Ions; D004364:Pharmaceutical Preparations; D000644:Quaternary Ammonium Compounds; D010423:Pentazocine