beta-Endosulfan, 100 µg/ml, Acetonitrile, 5ml

Iprovalicarb, 10.0 µg/ml, Acetonitrile, 10ml

2,2',3,3',4,4',5,5'-Octachloro[13C12]biphenyl, 50.0µg/mL in Nonane/10% toluene, 1,2ml

Ethyl acetate, 1000µg/ml in MeOH, 1ml