Carbendazim, 10.0 µg/ml, Methanol, 10ml

Mono-n-butyl phthalate (ring-1,2-13C2, dicarboxyl-13C2, 99%) 100 µg/mL in MTBE, 1,2ml

Ethalfluralin, 100 µg/ml, Ethyl acetate, 5ml

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