EPA Method 508 - Performance Check Solution Back Catalog number: 19132 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11914.10-K-ME Hordenine,1000 µg/mL,MeOH,1mL, Price on request DF-146-S 1,4,6-Trichlorodibenzofuran, 1.2ml x 50ug/ml, toluene Price on request 3169.21-K-IO Methyl eicosanoate (Methyl arachidate), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1120-28-1 Price on request