6:2 DiPAPS, Sodium salt,50 µg/mL,MeOH,1mL,

EPA Method 8330 Analyte

4-n-Octylphenol monoethoxylate,10 µg/mL,acetone,1mL,

4-Phenylphenol, 100 µg/ml, Acetonitrile, 5ml