Sample preparation for the determination of steroids (corticoids and anabolics) in feed using LC
An improved sample preparation procedure for the determination of 17 steroids (corticoids (CC) and androgenic anabolic steroids (AAS)), used potentially as growth promoters, in feed samples has been developed. This procedure is based on two reported LC-UV methods. The improved procedure includes a l...
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| Published in | Journal of separation science Vol. 31; no. 12; pp. 2303 - 2309 |
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| Main Authors | , , , , |
| Format | Journal Article |
| Language | English |
| Published |
Weinheim
Wiley-VCH Verlag
01.07.2008
WILEY-VCH Verlag WILEY‐VCH Verlag Wiley |
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| Abstract | An improved sample preparation procedure for the determination of 17 steroids (corticoids (CC) and androgenic anabolic steroids (AAS)), used potentially as growth promoters, in feed samples has been developed. This procedure is based on two reported LC-UV methods. The improved procedure includes a leaching process using ACN, saponification, and SPE using polymeric cartridges. The proposed method was validated according to the EU criteria established for quantitative screening methods in PFS. The extraction efficiencies, decision limits (CCα) and detection capabilities (CCβ), for these compounds were in the ranges of 82-100%, 19-40, and 24-53 μg/kg, respectively. The repeatability and the within-laboratory reproducibility at 1.0, 1.5, and 2.0 CCβ levels were smaller than 10%. Accuracy was in the 97-101% range. The robustness was evaluated using the Youden robustness test. This method was applied to the analysis of steroids in different kinds of FS with satisfactory results. |
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| AbstractList | An improved sample preparation procedure for the determination of 17 steroids (corticoids (CC) and androgenic anabolic steroids (AAS)), used potentially as growth promoters, in feed samples has been developed. This procedure is based on two reported LC-UV methods. The improved procedure includes a leaching process using ACN, saponification, and SPE using polymeric cartridges. The proposed method was validated according to the EU criteria established for quantitative screening methods in PFS. The extraction efficiencies, decision limits (CCalpha) and detection capabilities (CCbeta), for these compounds were in the ranges of 82-100%, 19-40, and 24-53 microg/kg, respectively. The repeatability and the within-laboratory reproducibility at 1.0, 1.5, and 2.0 CCbeta levels were smaller than 10%. Accuracy was in the 97-101% range. The robustness was evaluated using the Youden robustness test. This method was applied to the analysis of steroids in different kinds of FS with satisfactory results. An improved sample preparation procedure for the determination of 17 steroids (corticoids (CC) and androgenic anabolic steroids (AAS)), used potentially as growth promoters, in feed samples has been developed. This procedure is based on two reported LC‐UV methods. The improved procedure includes a leaching process using ACN, saponification, and SPE using polymeric cartridges. The proposed method was validated according to the EU criteria established for quantitative screening methods in PFS. The extraction efficiencies, decision limits (CCα) and detection capabilities (CCβ), for these compounds were in the ranges of 82–100%, 19–40, and 24–53 μg/kg, respectively. The repeatability and the within‐laboratory reproducibility at 1.0, 1.5, and 2.0 CCβ levels were smaller than 10%. Accuracy was in the 97–101% range. The robustness was evaluated using the Youden robustness test. This method was applied to the analysis of steroids in different kinds of FS with satisfactory results. An improved sample preparation procedure for the determination of 17 steroids (corticoids (CC) and androgenic anabolic steroids (AAS)), used potentially as growth promoters, in feed samples has been developed. This procedure is based on two reported LC-UV methods. The improved procedure includes a leaching process using ACN, saponification, and SPE using polymeric cartridges. The proposed method was validated according to the EU criteria established for quantitative screening methods in PFS. The extraction efficiencies, decision limits (CC) and detection capabilities (CC), for these compounds were in the ranges of 82-100%, 19-40, and 24-53 g/kg, respectively. The repeatability and the within-laboratory reproducibility at 1.0, 1.5, and 2.0 CC levels were smaller than 10%. Accuracy was in the 97-101% range. The robustness was evaluated using the Youden robustness test. This method was applied to the analysis of steroids in different kinds of FS with satisfactory results. Abstract An improved sample preparation procedure for the determination of 17 steroids (corticoids (CC) and androgenic anabolic steroids (AAS)), used potentially as growth promoters, in feed samples has been developed. This procedure is based on two reported LC‐UV methods. The improved procedure includes a leaching process using ACN, saponification, and SPE using polymeric cartridges. The proposed method was validated according to the EU criteria established for quantitative screening methods in PFS. The extraction efficiencies, decision limits (CCα) and detection capabilities (CCβ), for these compounds were in the ranges of 82–100%, 19–40, and 24–53 μg/kg, respectively. The repeatability and the within‐laboratory reproducibility at 1.0, 1.5, and 2.0 CCβ levels were smaller than 10%. Accuracy was in the 97–101% range. The robustness was evaluated using the Youden robustness test. This method was applied to the analysis of steroids in different kinds of FS with satisfactory results. |
| Author | Izquierdo-Hornillos, Roberto C Gonzalo-Lumbreras, Raquel Muñiz-Valencia, Roberto Santos-Montes, Ana Ceballos-Magaña, Silvia G |
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| Keywords | Steroid Validation Corticosteroid Solid phase extraction Chemical analysis HPLC chromatography Saponification Animal feed Chemical enrichment Growth promoting agents Ultraviolet detector Sample preparation LC Anabolic agent Feed Quantitative analysis Steroids |
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| Snippet | An improved sample preparation procedure for the determination of 17 steroids (corticoids (CC) and androgenic anabolic steroids (AAS)), used potentially as... Abstract An improved sample preparation procedure for the determination of 17 steroids (corticoids (CC) and androgenic anabolic steroids (AAS)), used... |
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| SubjectTerms | Adrenal Cortex Hormones - analysis Adrenal Cortex Hormones - chemistry Anabolic Agents - analysis Anabolic Agents - chemistry Animal feed Animal Feed - analysis Animals Biological and medical sciences Chromatography, Liquid - methods Chromatography, Liquid - statistics & numerical data Feed and pet food industries Food industries Fundamental and applied biological sciences. Psychology Growth promoting agents Molecular Structure Sensitivity and Specificity Steroids Steroids - analysis Steroids - chemistry Veterinary Drugs - analysis Veterinary Drugs - chemistry |
| Title | Sample preparation for the determination of steroids (corticoids and anabolics) in feed using LC |
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