EPA Method 551.1 Performance Check Soln Back Catalog number: 30114 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 67007 Antibiotics (Fluoroquinolones) Price on request 0409.32-150-CY n-Dotriacontane, ?13C: -28.34, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 544-85-4 Price on request 1107.14-100-TX5 9-Nitroanthracene-d9, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 220381-38-4 Price on request