EPA Method 8250 Back Catalog number: 82522 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2968.16-100-IO Temephos-d12 (O,O,O',O'-tetramethyl-d12), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1219795-39-7 Price on request 2758.10-1ML n-Butyrophenone, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 495-40-9 Price on request 90591 Simazine Price on request