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Chronopotentiometric Study of Tocopherols in Vegetable Oils
Author(s) -
Suturović Zvonimir J,
Marjanović Nikola J
Publication year - 1999
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/(sici)1521-4109(199903)11:3<207::aid-elan207>3.0.co;2-#
Subject(s) - chemistry , food science , chromatography
A simple and rapid method for the determination of tocopherols in vegetable oils by chronopotentiometry is described. The tocopherols were oxidized by constant current (4–10 μA) at a glassy carbon planar disk electrode. The concentration of tocopherols was determined by standard solutions prepared in a matrix of animal fat. Under the described experimental conditions for α−, γ (β +γ)−, and δ‐tocopherol a detection limit of about 15 mg/dm 3 was obtained. All samples were analyzed by a computerized electrochemical analyzer of our own construction.