Method 429 Internal Standard Stock Solution, 1.2ml, isooctane

Sulfaquinoxaline sodium salt, 100 µg/ml, Methanol

2-Chlorosyringealdehyde, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 76341-69-0

Trifluralin, 10.0 µg/ml, Ethyl acetate, 10ml