00000ctm a22000007a 4500 UP-1685523046125413276 Buklod 20230503092606.0 m |o d | ta 071031s xx d r |||| u| (iLib)UPMNL-00000054585 UPM PHARM ​​eng LG 993.5 1988 P5 A53 Andag, Aurea A. Instrumental analysis of ferrous sulfate-containing preparations Aurea Angat Andag ; advisers, Adoracion B. Concepcion, Ileana R. Cruz, Elena S. Fernando, Rizalina B. Santos. Manila College of Pharmacy, University of the Philippines 1988. 23 leaves ​Thesis (Bachelor of Science in Pharmacy)--University of the Philippines, October 1988. Yes - available to the general public. Two methods for the assay of ferrous ion in ferrous sulfate-containing tablets and capsules are described. The first method is based on the spectrophotometric measurement of the chromophore produced by reacting the ferrous ion with alpha, alpha'-dipyridyl (or 2, 2'-bipyridine). For comparison purposes, the absorbance of the said reaction was also measured via the electrophotomer/colorimeter. The second method used o-phenanthroline as the colorimetric reagent. The absorbance was measured using the same instruments. Ferrous sulphate. Instrumental analysis. Concepcion. Adoracion B. Cruz, Ileana R. Fernando, Elena S. Santos, Rizalina B. FI UP UPMNL PHARM LG 993.5 1988 P5 A53 Thesis