ASTM D-4815 Calibration Mix #4

DL-Nornicotine, neat, Solvent-neat, Unit 50mg, # of units-1, Cas.no. 5746-86-1

Oxasulfuron, 100 µg/ml, Acetonitrile, 1ml

Perfluorodecylphosphonic acid, 1.2ml x 50ug/ml, methanol