Internal Standard Spiking Solution, 1.2ml, nonane

Sulfosulfuron, 100µg/ml in Acetonitrile, 1ml

Arsenic (As)

Aminomethylphosphonic acid, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 1066-51-9