EPA Method 507 Nitrogen Phosphorus Pesticides

cis-1,2,trans-1,4-1,2,4-Trimethylcyclohexane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 7667-58-5

8,9-Z-Avermectin B1a, 100 µg/ml, Acetonitrile, 1

GC-IRMS Standards (C15 (?13C: -30.22); C20 (?13C: -33.06); C25 (?13C: -28.21)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no.