MA - EPH Matrix Spike Back Catalog number: 92113 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1588.12-100-IO 2-Hydroxycarbazole, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 86-79-3 Price on request 675383 Aspartame, 250mg Price on request 92189 EPA Method 525 Pesticide Standard Price on request