Výsledky vyhledávání - "Theodore Osgood"

Gas-Liquid Chromatographic Determination of Cholesterol and Other Sterols in Foods

Autor: Theodore Osgood, Willard D. Hubbard, David R. Newkirk, Alan J. Sheppard

Publikováno v: Journal of AOAC INTERNATIONAL. 60:1302-1306

A gas-liquid chromatographic (GLC) method, using the butyryl esters of sterols, has been developed for the measurement of cholesterol, stigmasterol, sitosterol, and campesterol in foods. An immobile phase of 1 % SE-30 coated on 100–120 mesh Gas-Chr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::feacffa58ab81cd41f9b1cb9512b5321
https://doi.org/10.1093/jaoac/60.6.1302

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Charcoal Column Cleanup Method for Many Organophosphorus Pesticide Residues in Crop Extracts

Autor: John R Pardue, R W Storherr, Theodore Osgood, Randall R Watts

Publikováno v: Journal of AOAC INTERNATIONAL. 52:522-526

In the charcoal column cleanup method for organophosphorus pesticide residues in crops, the pesticides arc extracted from the crops with ethyl acetate and a 10–20 g aliquot is placed directly on the charcoal adsorbent column for cleanup. The Kudern

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6a734daa1ea6facf0423509b0216135c
https://doi.org/10.1093/jaoac/52.3.522

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Individual lipids and proximate analysis of various foods. 2. Frankfurters and other meat and poultry products

Autor: Theodore Osgood, Alan J. Sheppard, Willard D. Hubbard, David R. Newkirk

Publikováno v: Journal of Agricultural and Food Chemistry. 26:348-350

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31f62eb7d087b8d2bf1fc5352405dd5b
https://doi.org/10.1021/jf60216a036

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Comparison of various methods for the extraction of total lipids, fatty acids, cholesterol, and other sterols from food products

Autor: Willard D. Hubbard, David R. Newkirk, Theodore Osgood, Alan J. Sheppard, A. R. Prosser

Publikováno v: Journal of the American Oil Chemists' Society. 54:81-83

Seven methods were used to compare the efficiency of total lipid extraction from 13 samples of eight different food products. The methyl esters of fatty acids and the butyrate esters of sterols were prepared and analyzed by gas liquid chromatography.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b186ac97aa3ff6b800849e0280c4a97
https://doi.org/10.1007/bf02912395

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Individual lipids and proximate analysis of various foods. 1. French fried potatoes from ten chain restaurants

Autor: A. R. Prosser, Theodore Osgood, Shirley T. Jones, Alan J. Sheppard, Elias Tombropoulos, David R. Newkirk, Willard D. Hubbard

Publikováno v: Journal of Agricultural and Food Chemistry. 25:1280-1281

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf25f628bd28100a402ac62a956eb4e0
https://doi.org/10.1021/jf60214a044

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Steam Distillation Technique for the Analysis of 2,3,7,8-Tetrachlorodibenzo-p-dioxin in Technical 2,4,5-T

Autor: Randall R Watts, Albert M Gardner, R W Storherr, Theodore Osgood

Publikováno v: Journal of AOAC INTERNATIONAL. 54:218-219

Technical 2,4,5-T formulations may contain 2,3,7,8-tetrachlorodibenzo-p-dioxin as a contaminant. A method is described in which the tetrachlorodioxin is separated from technical components by steam distillation and analyzed by microcoulometric GLC.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bcc2cc4911119226844aac72a2e2cd3a
https://doi.org/10.1093/jaoac/54.1.218

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