title: A colorimetric method for quick identification and estimation of penicillins.
mesh_terms: D003124:Colorimetry; D005557:Formaldehyde; D010400:Penicillin G / Q000032:analysis; D010404:Penicillin V / Q000032:analysis; D010406:Penicillins / Q000032:analysis*; D013464:Sulfuric Acids
chemical_list: D010406:Penicillins; D013464:Sulfuric Acids; D005557:Formaldehyde; C033158:sulfuric acid; D010400:Penicillin G; D010404:Penicillin V