EPA Method 548.1 Analyte Back Catalog number: 30077 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 684107 Atrazine-desisopropyl, 10.0 µg/ml, Acetonitrile, Price on request 71176 2-Methylaziridine Price on request 679092 Nonylphenol (technical), 250mg Price on request