1. Extraction-spectrophotometric determination of iron (II) with thiosalicylic acid;Salinas;Quina Anal.,1990
2. Extractive colorimetric determination of iron (III) in pharmaceutical formulations by means of trifluoroacetylacetone;Raggi;Int. J. Pharm.,1990
3. Semi-micro determination of Mn (II), Co (II), and iron (II) using 1,3-dibromo-5,5-dimetylohydantoin (DBH) by potentiometric method;El-Bolkinyg;J. Pharm. Sci.,1992
4. Spectrophotometric determination of micromolar concentration of iron (II) and iron (III) in anti-anemic formulations using a newly prepared Schiff's base;Issopoulos;Pharmazie,1994
5. Spectrophotometric determination of Fe(II) in pharmaceutical multivitamine preparations by azo-dyes derivatives of 1,3,4-thiadiazole (Tidarez-β) and 1,2,4-triazole (Metriarez-β);Zaręba;Acta Pol. Pharm. Drug Res.,1994