EPA Method 551.1 - Analytes Mix “A” Back Catalog number: 30100 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680111 4-Bromophenol, 500mg Price on request 673203 Atrazine, 100 µg/ml, Acetonitrile, 5ml Price on request 2700.8-25MG Isocaffeine (1,3,9-Trimethylxanthine), neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 519-32-4 Price on request