EPA Method 8021B Internal Standard Back Catalog number: 19394 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9913.4-K-ME N-Nitropiperazine, 1000µg/mL, Solvent-methanol, Unit 1.1mL, # of units-1, Cas.no. Price on request 3548.26-K-T 9,9'-Bifluorenylidene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 746-47-4 Price on request 11637.20-K-IO n-Butyl n-octyl phthalate, techn.,1000 µg/mL,isooctane,1mL, Price on request
