Ametryn, 10.0 µg/ml, Ethyl acetate, 10ml

2,3,4,4',6-Pentachlorobiphenyl ,100 µg/mL,isooctane,1mL,

Oxolinic acid, 250mg

4,4'-DDT (ring-13C12), 100ug/ml in n-Nonane, 1,2ml