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Microbiological assay of avoparcin in animal feeds and pre-mixes--co-operative study
M J Gliddon1, C A Poole, F H Johannsen
1Product Research and Development Laboratory, Cyanamid of Great Britain Limited, Gosport, Hampshire, UK.
The Analyst
|September 1, 1992
Abstract:
A microbiological method for the determination of the antibiotic growth promoter avoparcin in animal feeds and pre-mixes was first published in 1979. The existing method has been applied to new matrices as commercial use of avoparcin has spread. Problems with the existing analytical procedure have been reported, particularly in Germany. This paper identifies the causes of the problems and includes revisions to the existing analytical procedure. The testing of these revisions in co-operative studies with up to five German official laboratories is also reported.