Colorimetric determination of folic acid in pharmaceutical preparations.
D003124:Colorimetry; D004338:Drug Combinations; D005492:Folic Acid / Q000032:analysis*; D009285:Naphthoquinones; D010084:Oxidation-Reduction; D013451:Sulfonic Acids; D013607:Tablets
D004338:Drug Combinations; D009285:Naphthoquinones; D013451:Sulfonic Acids; D013607:Tablets; D005492:Folic Acid