Interference Standard 4 Back Catalog number: 52041A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 98137 FID Test Mix - 200ug/mL Price on request CLM-1281-1.2 4,4'-DDT (ring-13C12,99%) 100 µg/mL in Nonane, 1,2ml Price on request 2525.13-K-ME Ibuprofen, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 15687-27-1 Price on request