EPA Method 507 - Performance Check Solution

25-Hydroxy Vitamin D2, 1mg

(+/-)-Phenconazole-d7 (pentyl-3,3,4,4,5,5,5-d7),100 µg/mL,acetonitrile,1mL,

n-Dodecane-d26, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 16416-30-1