Disulfoton, 100 µg/ml, Toluene, 1ml

2,3',4,4',5-Pentachloro-3-methoxybiphenyl, 1.2ml x 50ug/ml, nonane

alpha-HCH, 100 µg/ml, Ethyl acetate, 5ml

D4-Ochratoxin A, 10.0 µg/ml, Acetonitrile, 1ml