2?-Ethyl-18?(H)-Oleanane,neat,neat,Ca. 5 µg,

Trifluoroacetic acid sodium salt, 100µg/ml, water 1X1ML

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

Fenuron, 10 µg/ml, Acetonitrile, 10ml