EPA Method 8140/8141 Analytes Back Catalog number: 81400 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673267 Disulfoton-sulfone, 100 µg/ml, Acetonitrile, 5ml Price on request 94000 Fluorene Price on request 679407 Dimethyldioctadecylammonium chloride, 100 µg/ml, Price on request