{"title":"Modifications to the official method for testing chlortetracycline HCl in animal feeds.","authors":"M. L. Hasselberger","doi":"10.1093/JAOAC/74.5.790","DOIUrl":null,"url":null,"abstract":"Results are compared for the microbiological analysis of chlortetracycline using the AOAC method and a modified method applicable to potencies above 50 g/ton. Two modifications are presented: substitution of a pH range of 4.0-4.5 instead of the specified pH of 4.5 for the plating solution, and substitution of extraction by shaking instead of the blending procedure. There were no significant differences in results between the AOAC method and the modified method.","PeriodicalId":14752,"journal":{"name":"Journal - Association of Official Analytical Chemists","volume":"45 1","pages":"790-2"},"PeriodicalIF":0.0000,"publicationDate":"1991-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal - Association of Official Analytical Chemists","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1093/JAOAC/74.5.790","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
Results are compared for the microbiological analysis of chlortetracycline using the AOAC method and a modified method applicable to potencies above 50 g/ton. Two modifications are presented: substitution of a pH range of 4.0-4.5 instead of the specified pH of 4.5 for the plating solution, and substitution of extraction by shaking instead of the blending procedure. There were no significant differences in results between the AOAC method and the modified method.
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