EPA Method 8260B Mix #4

n-Pentyl benzyl phthalate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1240-18-2

Sedaxane, 10.0 µg/ml, Acetonitrile, 10ml

Formothion, 100 µg/ml, Ethyl acetate, 1ml