EPA Method 8032 Internal Standard Back Catalog number: 80303 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8835.8-K-IO 2,3-Diethylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. Price on request 1812.18-50-CY Tetradecabromo-1,4-diphenoxybenzene, 50µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 58965-66-5 Price on request 54256 Ammonium (NH4+) Price on request