Інститут Птахівництва Української Академії Аграрних Наук
Институт Птицеводства Украинской Академии Аграрных Наук
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Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means
(AREA)
Abstract
Method for determination of a-tocopherol prescribes saponification of sample being analyzed in presence of pyrrogalol at 90-95°C, extraction with ester of non-saponified part of the sample, drying ester extraction, evaporation and dissolving residual obtained in chlorophorm with following thin-layer chromatographic serparation of solution obtained through its application to chromatographic plate, elution of adsorbed layer with mix that includes alcohol and inorganic acid, development of plates with treatment of those with color reagent and photometering of eluent.
UA4058471A1986-03-101986-03-10Method for determination of alpha-tocopherol
UA11437A1
(en)