4,4'-DDD, 100 µg/ml, Acetonitrile, 5ml

Ethanol standard in serum,0.3g/L,serum, 1.5mL

D3-Dicamba, 100 µg/ml, Acetone, 1ml

Thiamethoxam-d3 (N-methyl-d3),100 µg/mL,acetonitrile,1mL,