EPA Method 200.8 Internal Standard Back Catalog number: 56332 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3986.8-K-CY trans-1,2,cis-1,4-1,2,4-Trimethylcyclopentane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 16883-48-0 Price on request 92665 2-Isopropyl-3-methoxypyrazine Price on request 675305 Terbutryn, 100 µg/ml, Acetonitrile, 5ml Price on request