The parent compound and its metabolite were determined by GC / MS with a limit of quantification of 0.45 ng / ml for COMPOUND_XXX and 0.49 ng / ml for COMPOUND_XXX - 666 ( metabolite ) .
The parent compound and its metabolite were determined by GC / MS with a limit of quantification of 0.45 ng / ml for COMPOUND_XXX and 0.49 ng / ml for COMPOUND_XXX - 666 ( metabolite ) .
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