EPA Method 539Mix #1, 100µg/ml in MeOH, 1ml

2,3,3,4,4,5,5,6-Octachlorobiphenyl

p-n-Nonylphenol Diethoxylate (ring-13C6), 100µg/ml in Nonane, 1,2ml

Base/Neutral & Acid Surrogate Standard