Determination of individual tocopherols by derivative spectrophotometry | Zendy

Bukovits Gabriel J. | Zendy; Lezerovich Alberto | Zendy

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Determination of individual tocopherols by derivative spectrophotometry

Author(s) -

Bukovits Gabriel J.,

Lezerovich Alberto

Publication year - 1987

Publication title -

journal of the american oil chemists' society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.512

H-Index - 117

eISSN - 1558-9331

pISSN - 0003-021X

DOI - 10.1007/bf02636386

Subject(s) - derivative (finance) , spectrophotometry , chromatography , second derivative , chemistry , analytical chemistry (journal) , mathematics , mathematical analysis , financial economics , economics

The second order derivative UV spectra of α‐, β‐, γ‐ and σ‐tocopherols showed small differences that allowed development of a derivative spectrophotometric method for determining individual tocopherols in a mixture. The procedure consists of measuring the second derivative spectrum of the sample at four specified wavelengths and calculating each concentration by means of a method for multicomponent analysis that uses mixtures as standards. Vegetable oils and other fatty products usually require a previous clean‐up process (under study) in order to remove interfering substances.

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