EPA Method 200.8 Internal Standard Back Catalog number: 56332 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73637 d,l-MDEA Price on request LA18000020CY Pesticide-Mix 20 10 µg/mL in Cyclohexane, 1ml Price on request 0044.22-100-T 7-Nitrodibenz[a,h]anthracene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 63041-91-8 Price on request