Mérieux NutriSciences laboratory gains approval for 2 methods for analysis of ractopamine
The USDA Agricultural Method Service (AMS) has approved two testing methods employed by Silliker JR Laboratories, a Mérieux NutriSciences Company, for the analysis of the Beta-adrenergic agonist-Ractopamine in animal tissue and meat. The methods, “Beta Agonists in Animal Tissue and Animal Derived Foods” and “Ractopamine in Animal Tissue and Fat by LC/MS/MS,” are posted at www.ams.usda.gov/betaagonists.
The methods were given official approval to be used in verification testing by the agency following an extensive review of method validation data, method performance specifics and associated recognition. The Beta Agonists in Animal Tissue and Animal Derived Foods method utilizes ultra performance liquid chromatography-tandem mass spectrometry for the simultaneous determination of several residues, including clenbuterol, isoxsuprine, ritodrine, tulobuterol and ractopamine. Developed at Silliker JR Laboratories, the LC/MS/MS method detects the presence of ractopamine in meat samples at 0.1 ppb. The method is also applicable for eggs and dairy products.