title: Sensitive colorimetric determination of isoniazid.
mesh_terms: D003124:Colorimetry; D007202:Indicators and Reagents; D007538:Isoniazid / Q000032:analysis*; D007539:Isonicotinic Acids / Q000032:analysis; D012996:Solutions; D013053:Spectrophotometry; D013607:Tablets; D013997:Time Factors
chemical_list: D007202:Indicators and Reagents; D007539:Isonicotinic Acids; D012996:Solutions; D013607:Tablets; D007538:Isoniazid