Hexaflumuron, 10 µg/ml, Ethyl acetate, 10ml

2,4,6,8-Tetrachloro[13C12]dibenzothiophene, 1.2ml x 50ug/ml, toluene

D7-Oxibendazole, 10mg

EPA Method 537 Native Primary Std (br/l mix), 2µg/ml in MeOH, 1,2ml