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- W2046290469 abstract "A method is developed for the analysis of sterols together with triterpenic alcohols (erythrodiol and uvaol) in vegetable oils. The method involves obtention of the unsaponifiable matter, isocratic HPLC separation with refractive index detector, preparation of silylderivatives, and analysis by capillary GC. Four procedures involving GC analysis of sterol and sterol+dialcohol fractions obtained by HPLC and CCF separations are compared. A collaborative trial comparing HPLC-sterols+dialcohols and CCF-sterols (official) methods is carried out. For Δ7-sterols, higher values and better repeatability and reproducibility were observed in the first method, but no differences for the remainder sterols were found. The erythrodiol+uvaol determinations by HPLC-sterols+dialcohols and CCF-sterols+dialcohols (official) methods resulted in similar precision." @default.
- W2046290469 created "2016-06-24" @default.
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- W2046290469 date "1997-08-30" @default.
- W2046290469 modified "2023-09-29" @default.
- W2046290469 title "Determinación de esteroles y dialcoholes triterpénicos en aceite de oliva mediante separación de la fracción por cromatografía líquida de alta eficacia y análisis por cromatografía de gases. Estandarización del método analítico." @default.
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- W2046290469 doi "https://doi.org/10.3989/gya.1997.v48.i4.791" @default.
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