Interference Standard 1 Back Catalog number: 52039 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10728.4-10MG Methional 13C3 (1,2,3-13C3) Price on request 679556 D5-Nalidixic acid, 10mg Price on request BRP-26 2,6-Dibromophenol, 1.2ml x 100ug/ml, toluene Price on request