Initial Check Verif. Standard 4, in 4%HNO3, 100ml Back Catalog number: ICV-4-100 Availability: In the manufacturer's stock Price on request - + Recommended 675388 Azinphos-ethyl, 100 µg/ml, Acetonitrile, 10ml Price on request 0223.26-200-T Dibenzo[e,ghi]perylene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 190-95-4 Price on request 95166 Aroclor 1254 Price on request