2,4'-DDE, 100 µg/ml, Ethyl acetate, 5ml Back Catalog number: 673532 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 82535 EPA Method 8250 - Acid Matrix Spiking Solution Price on request 8552.29-10-IO d3(ringA) Isoadiantane; ca. 20% d2, 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 50630 Ammonia as (NH4+) Price on request