EPA Method 515 Herbicide Methyl Esters

Serotonin-13C2,15N hydrochloride (ethylamine-13C2,15N),100 µg base/mL,MeOH,1mL

Clofibrate,neat,neat,10mg,

1,2,5,6,9,10-Hexachlorododecane, 100µg/ml in Isooctane, 1ml