Spectrophotometric determination of iron in multivitamins for babies
Date of Publication
1996
Document Type
Bachelor's Thesis
Degree Name
Bachelor of Science in Chemistry
College
College of Science
Department/Unit
Chemistry
Thesis Adviser
Julita Robles
Defense Panel Chair
Martin Ilao
Abstract/Summary
This study involves the quantitative analysis of the iron content in three commonly prescribed multivitamins for infants and children. The samples were decomposed using concentrated nitric acid. The analyte iron (III) was converted to the colored complex [Fe(SCN6]3- by the addition of excess KSCN solution. Spectrophotometric measurements were conducted (at the max =480.5nm with distilled water as a blank) using standard calibration curve and standard addition methods. Results showed that, for the standard calibration curve method, samples A,B,C contain 10.1 x 10, 5.70 x 10, 3.81 x 10 ppm iron respectively, while 9.9 x 10, 5.63 x 10,4.03 x 10 ppm iron were obtained from the same samples using the standard addition method.
Abstract Format
html
Language
English
Format
Accession Number
TU17517
Shelf Location
Archives, The Learning Commons, 12F, Henry Sy Sr. Hall
Physical Description
54 leaves : illustrations (some color) ; 28 cm.
Keywords
Vitamins; Infants; Spectrophotometry; Baby foods--Iron content
Recommended Citation
Repoquit, R., & Tan, C. (1996). Spectrophotometric determination of iron in multivitamins for babies. Retrieved from https://animorepository.dlsu.edu.ph/etd_bachelors/8634
