Trifluralin, 1.0mg/mL in MeOH, 1ml

Interference Standard 1

Perfluorobutyric acid, sodium salt, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 2218-54-4

Potassium (K), 1000µg/ml in 2%-HNO3/Water, 100ml