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Direct spectrophotometric determination of iron in vegetable oils
Author(s) -
Lau OiWah,
Mok ChuenShing
Publication year - 1982
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740331014
Subject(s) - chemistry , vegetable oil , solvent , aqueous solution , chromatography , absorption (acoustics) , phenanthroline , organic chemistry , materials science , composite material
A simple and direct spectrophotometric method for the determination of iron in vegetable oils has been developed. The proposed method is based on the aqueous 1,10‐phenanthroline method, where propionic acid is used as solvent for the vegetable oils and the iron(II) 1,10‐phenanthroline complex is formed directly in propionic acid with an absorption maximum at 514 nm.