D4-Imidacloprid, 100 µg/ml, Acetone, 1ml

EPA Method 8240A - Purgeable Surr Std

Ethanol standard in whole blood,0.5g/L,whole blood, 3mL

p-Terphenyl-d14, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 1718-51-0