Liquid chromatographic determination of narasin in feed premixes.
A liquid chromatographic (LC) method has been developed to determine narasin in feed premixes. Narasin is extracted from the premix with a methanol-water solvent, and the extracted solution is assayed by using LC. Recovery of narasin from a 12.5 g/lb premix is quantitative (100%), with a relative standard deviation of 1.44%. The results correlated well (coefficient 0.92) with a turbimetric bioassay method.
D000821:Animal Feed / Q000032:analysis*; D002853:Chromatography, Liquid; D003049:Coccidiostats / Q000032:analysis*; D011714:Pyrans / Q000032:analysis*; D013056:Spectrophotometry, Ultraviolet
D003049:Coccidiostats; D011714:Pyrans; C013612:narasin