Norflurazon, 10 µg/ml, Acetonitrile, 10ml

13C2,15N2-Metronidazole, 10mg

2H-Perfluoro-[1,2-13C2]-2-octenoic acid (6:2), 50µg/ml in Isopropanol, 1,2ml

EPA Method 8040A Analytes Mix “B”