Výsledky vyhledávání - "McDonnell JP"

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Graphite Furnace Atomic Absorption Spectrophotometric Determination of 4-Hydroxy-3-Nitrobenzenearsonic Acid, Other Organic Arsenicals, and Inorganic Arsenic in Finished Animal Feed

Autor: Frahm Lj, George Gm, McDonnell Jp

Publikováno v: Journal of AOAC INTERNATIONAL. 65:711-719

4-Hydroxy-3-nitrobenzenearsonic acid (roxarsone) is administered in animal feed as a growth stimulant over a concentration range of 25-50 ppm. The drug is extracted from 5 g feed with 200 mL aqueous 1.0% ammonium carbonate solution and 5 min of mecha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d8d1acc06daadf000aef71563e5cd6f2
https://doi.org/10.1093/jaoac/65.3.711

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Atomic Absorption Spectrophotometric Determination of 4-Hydroxy-3-Nitrobenzenearsonic Acid (Roxarsone) in Premixes

Autor: Frahm Lj, Albrecht Me, McDonnell Jp

Publikováno v: Journal of AOAC INTERNATIONAL. 58:945-948

Roxarsone (4-hydroxy-3-nitrobenzenearsonic acid) is extracted from the premix with aqueous 1% ammonium carbonate. The extract is filtered, diluted, and analyzed by atomic absorption spectrophotometry, using an air-acetylene flame and an arsenic elect

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a72702b7e085f97f5c88173251a628f0
https://doi.org/10.1093/jaoac/58.5.945

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High Pressure Liquid Chromatographic Determination of Nifursol in Finished Feeds

Autor: George Gm, Frahm Lj, McDonnell Jp

Publikováno v: Journal of AOAC INTERNATIONAL. 64:969-972

Nifursol is extracted from feed with acetonitrile, and then washed with carbon disulfide to remove feed interferences. An aliquot is concentrated, diluted with 5% NaCl solution, filtered, and then subjected to high pressure liquid chromatography on a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5226da1bd6d53f342325ff3078788e97
https://doi.org/10.1093/jaoac/64.4.969

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Atomic Absorption Spectrophotometric Determination of Dibutyltin Dilaurate in Finished Feeds: Collaborative Study

Autor: Frahm Lj, George Gm, McDonnell Jp

Publikováno v: Journal of AOAC INTERNATIONAL. 60:1054-1058

Dibutyltin dilaurate is administered in the feed as an active drug for the removal of large roundworms, cecal worms, and several species of tapeworms from chickens and turkeys. The drug is extracted from finished feed with warm CHCl3, the CHCl3 extra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6ca3ebb50fe61b0d212b1ce8d8b70114
https://doi.org/10.1093/jaoac/60.5.1054

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Dry Ashing Method for the Determination of Total Arsenic in Animal Tissues: Collaborative Study

Autor: George Gm, Frahm Lj, McDonnell Jp

Publikováno v: Journal of AOAC INTERNATIONAL. 56:793-797

The method described for the determination of total arsenic in animal tissue is sensitive to levels of 0.1 ppm. Tissue samples are dry-ashed in the presence of magnesium oxide and magnesium nitrate and the arsenic is determined colorimetrically with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::77b624e83f9e5f2d71acd63c42194b79
https://doi.org/10.1093/jaoac/56.4.793

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Akademický článek

Infectious ulcerative keratitis after laser in situ keratomileusis.

Autor: Quiros PA; Department of Ophthalmology, University of California Irvine 92697, USA., Chuck RS, Smith RE, Irvine JA, McDonnell JP, Chao LC, McDonnell PJ

Publikováno v: Archives of ophthalmology (Chicago, Ill. : 1960) [Arch Ophthalmol] 1999 Oct; Vol. 117 (10), pp. 1423-7.

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