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|Title:||Validation of an Analytical Method for the Determination of Spiramycin Virginiamycin and Tylosin in Feedingstuffs by Thin Layer Chromatography and Bioautography|
|Authors:||VINCENT URSULA; GIZZI Gisele; VON HOLST CHRISTOPH; DE JONG Jacob; MICHARD Jacques|
|Citation:||FOOD ADDITIVES AND CONTAMINANTS vol. 24 no. 4 p. 351-359|
|Publisher:||TAYLOR & FRANCIS LTD|
|Type:||Articles in periodicals and books|
|Abstract:||An inter-laboratory comparison was carried out to assess the method performance characteristics of an analytical method based on thin layer chromatography (TLC) coupled to microbiological detection (bio-autography) for screening feed samples for the presence of spiramycin, tylosin and virginiamycin. The required detection limit was 1 mg kg-1 (expressed in microbiological activity). For tylosin and virginiamycin, acceptable values of the sensitivity were obtained on all concentrations including 1 mg kg-1. Therefore the method fulfils the criterion regarding the required sensitivity at the target detection limit for tylosin and virginiamycin, whereas for spiramycin the limit of detection was 2 mg/kg.|
|JRC Institute:||Institute for Reference Materials and Measurements|
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