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

Tris(3,4-dimethylphenyl) phosphate, 1.2ml x 50ug/ml, toluene

Triazine Pesticides Mixture 926 100 µg/mL in Acetone,1ml

D4-Acetaminophen, 100 µg/ml, Acetonitrile, 1ml