Anions EPA Method 300 Back Catalog number: 50095 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678253 Phorate-sulfone, 100 µg/ml, Acetonitrile, 1ml Price on request 2342.10-K-HX Isobutylbenzene, 1000µg/mL, Solvent-hexane, Unit 1mL, # of units-1, Cas.no. 538-93-2 Price on request 30411 1,2,4-Trichlorobenzene Price on request