pH 7.0 Standard @ 25°C

N-Ethyl-n-perfluorobutanesulfonamide (N-EtFBSA), 50μg/ml in Acetonitrile, 1ml

2,3,3',4,4',5,5',6-Octachlorobiphenyl (205)

Dimethenamid-P ESA sodium salt, 10mg