Difenoxuron,100 µg/mL,MeOH,1mL,

Desethylatrazine-d7, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1216649-31-8

Perfluoro-n-[1,2-13C2]decanoic acid, 1.2ml x 50ug/ml, methanol

Arochlor 1232, 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 11141-16-5