2008
DOI: 10.1590/s0100-40422008000600027
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Desenvolvimento de metodologia analítica para determinação de colesterol em ração para ruminantes através de planejamento experimental fatorial

Abstract: Recebido em 25/8/07; aceito em 7/3/08; publicado na web em 26/8/08DEVELOPMENT OF AN ANALYTICAL METHOD FOR CHOLESTEROL DETERMINATION IN FEED FOR RUMINANTS USING FACTORIAL EXPERIMENTAL DESIGN. A chromatographic method was developed for cholesterol determination in feed for ruminants using response surface methodology. Among the five approaches of sample preparation methods tested, the saponification of the sample without heating presented less interference in the gas chromatography. The method presented a relati… Show more

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Cited by 4 publications
(9 citation statements)
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“…Before validating the method, the results obtained were analyzed using a factorial experimental design 27 to optimize the procedures, considering peak cholesterol resolution, better efficiency to determine the cholesterol content, and less interference from sterols and solvents. After optimization the results were validated.…”
Section: Resultsmentioning
confidence: 99%
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“…Before validating the method, the results obtained were analyzed using a factorial experimental design 27 to optimize the procedures, considering peak cholesterol resolution, better efficiency to determine the cholesterol content, and less interference from sterols and solvents. After optimization the results were validated.…”
Section: Resultsmentioning
confidence: 99%
“…The recovery values ranged from 84.0% to 86.7%, 27 in the samples spiked with the cholesterol standard, and the relative standard deviations varied from 2.9% to 4.0%, 27 values within acceptable limits. 30 …”
Section: Specificity Trueness and Precisionmentioning
confidence: 86%
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