title: Evaluation of guaiacol derivatives in pharmaceutical preparations by spectrofluorimetric techniques.
mesh_terms: D006139:Guaiacol / Q000032:analysis*; D006140:Guaifenesin / Q000032:analysis; D013050:Spectrometry, Fluorescence / Q000379:methods*
chemical_list: D006140:Guaifenesin; D006139:Guaiacol