O,O-Diethylthiophosphate-13C2, sodium salt, 100µg/ml in MeOH, 1ml

Ethanolamine, 100mg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 141-43-5

Pendimethalin, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 40487-42-1

EPA Method 200.8 Internal Standard