EPA Method 508A DCB Stock Solution

((2S,3S)-3-((E)-6-((R)-3,3-Dimethyloxiran-2-yl)-4-methylhex-3-en-1-yl)-3-methyloxiran-2-yl)methanol, 5mg

Caffeine, 100 µg/ml, Methanol, 1ml

Native Stock PCDDs and PCDFs, 1.2ml, nonane