title: [ON THE EFFECT OF FOREIGN SUBSTANCES ON THE PHOTOMETRIC DETERMINATION OF FORMALDEHYDE WITH CHROMOTROPIC ACID].
mesh_terms: D002623:Chemistry Techniques, Analytical; D002626:Chemistry, Pharmaceutical; D005557:Formaldehyde; D009281:Naphthalenes; D009282:Naphthalenesulfonates; D010783:Photometry; D012106:Research; D013451:Sulfonic Acids
chemical_list: D009281:Naphthalenes; D009282:Naphthalenesulfonates; D013451:Sulfonic Acids; D005557:Formaldehyde; C020996:chromotropic acid
keywords: CHEMISTRY, ANALYTICAL; CHEMISTRY, PHARMACEUTICAL; EXPERIMENTAL LAB STUDY; FORMALDEHYDE; NAPHTHALENES; PHOTOMETRY; SULFONIC ACIDS
vernacular_title: UBER DEN EINFLUSS VON FREMDSTOFFEN AUF DIE PHOTOMETRISCHE FORMALDEHYDBESTIMMUNG MIT CHROMOTROPSAEURE.