Anions Mix 2, varied µg/ml in Water, 100ml

MCPA, 100 µg/ml, Acetonitrile, 5ml

Hexazinone-d6 (dimethyl-d6-amino),100 µg/mL,acetonitrile,1mL,

D7-Atenolol, 100 µg/ml, Acetonitrile, 1ml