Metformin-d6-HCl, 100μg/ml in MeOH, 5ml

2,3,4,5-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL,

Ethanol 100mg/dL Standard (10 x 1mL)

Ethion, 10.0 µg/ml, Ethyl acetate, 10ml