Nitrite as NO2-

Phosphamidon, 100 µg/ml, Toluene, 5ml

GC-IRMS Standards (C11(?13C: -26.11); C15 (?13C: -30.22); C20 (?13C: -33.06)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no.

Tritosulfuron, 100µg/mL in Acetonitrile, 5ml