Precision spectrophotometric determination of total iron in chromite ores

The Analyst ◽  
1980 ◽  
Vol 105 (1249) ◽  
pp. 333 ◽  
Author(s):  
D. Thorburn Burns ◽  
M. E. M. Abdel Aziz
Keyword(s):  
Spectrophotometric Determination ◽  
Total Iron

scholarly journals Improved Spectrophotometric Determination of Total Iron and Iron(III) with o-Hydroxyhydroquinonephthalein and Their Characterization

2011 ◽  
Vol 131 (7) ◽  
pp. 1095-1101 ◽  
Author(s):  
Mitsuru HOSHINO ◽  
Hiroyuki YASUI ◽  
Hiromu SAKURAI ◽  
Takako YAMAGUCHI ◽  
Yoshikazu FUJITA
Keyword(s):  
Spectrophotometric Determination ◽  
Total Iron

scholarly journals Spectrophotometric Determination of Total Iron in Rice and Maize Samples

2013 ◽  
Vol 11 (11) ◽  
pp. 101-104 ◽  
Author(s):  
Armila Rajbhandari ◽  
Tara Subedi
Keyword(s):  
Spectrophotometric Determination ◽  
Total Iron ◽  
Scientific World

Scientific World, Vol. 11, No. 11, July 2013, page 101-104 DOI: http://dx.doi.org/10.3126/sw.v11i11.8562

Collaborative Study of a Spectrophotometric Determination of Ferric, Ferrous, and Total Iron in Drugs by Reaction with α,α′-Dipyridyl

1977 ◽  
Vol 60 (6) ◽  
pp. 1350-1354
Author(s):  
Daniel J Sullivan
Keyword(s):  
Spectrophotometric Determination ◽  
Spectrophotometric Method ◽  
Coefficient Of Variation ◽  
Collaborative Study ◽  
Total Iron ◽  
Average Recovery ◽  
Average Coefficient ◽  
Iron Preparation ◽  
Colorimetric Reagent

Abstract A spectrophotometric method for determining Fe2+, Fe3+, and total Fe in drugs has been developed, using α, α′-dipyridyl as the colorimetric reagent. The method is applicable to tablets, elixirs, injectables, and bulk powders. Eight collaborators analyzed a synthetic iron preparation and 7 commercial samples. For the synthetic iron preparation, the average recovery was 100.3% and the coefficient of variation was 1.02%. For 7 commercial samples, the average coefficient of variation was 1.44%. The method has been adopted as official first action.

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