EPA Method 8140/8141 Analytes Back Catalog number: 81400 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680205 Chlorfenprop-methyl, 100 µg/ml, Acetonitrile, 1m Price on request 91819 Quinoxaline-2-carboxylic acid Price on request 673967 Bromoxynil, 10.0 µg/ml, Acetonitrile, 10ml Price on request