Perdeuterated Internal Standard PAH-mixture 24 1336,12 Acenaphthylene-d8 [93951-97-4] 1024,18 Chrysene-d12 [1719-03-5] 1531,22 Indeno[1,2,3-cd]pyrene-d12 [-] Concentration.: 100µg/ml in ethyl acetate

Custom BTEX mixture, variation of S-4218 6 components, each concentration as described below in methanol 1300.6 Benzene, 3000µg/mL 1264.7 Toluene, 3000µg/mL 1268.8 Ethylbenzene, 300µg/mL 1265.8 p-Xylene, 300µg/mL 1266.8m-Xylene, 300µg/mL 1267.8 o-X

PCB Mix 10 ppb

4-Isopropyl-1-methylbenzene (p-Isopropyltoluene), 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 99-87-6