EPA Method 8240A Internal Standard Back Catalog number: 22003 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3136.11-K-IO Undecanoic acid (Hendecanoic), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 112-37-8 Price on request BDE-191 2,3,3',4,4',5',6-Heptabromodiphenyl ether, 1.2ml x 50ug/ml, toluene Price on request 677301 Caffeine, 100 µg/ml, Methanol, 1ml Price on request