Method 200.8/1638/1640 Internal Standard Back Catalog number: 53145 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9391.10-50-AN 8:2Mono-PAPS, 50µg/mL, Solvent-acetonotrile, Unit 1mL, # of units-1, Cas.no. 57678-03-2 Price on request 674692 D6-Diuron, 10mg Price on request ACQ-SE40-030 Ethanol standard in serum,4.0g/L,serum, 3mL Price on request