Fenpropidin, 100µg/ml in Acetonitrile, 5ml

alpha-HCH, 10 µg/ml, Ethyl acetate, 10ml

alpha-Ketoglutaric acid

2,3,3',4,4',5,5',6-Octachlorobiphenyl ,100 µg/mL,isooctane,1mL,