EPA Method 531.1 - Analytes Mixture Back Catalog number: 33042R Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA11690000AL Clopyralid, 100µg/ml in Acetonitrile, 1ml Price on request 673427 Prosulfocarb, 100 µg/ml, Acetonitrile, 5ml Price on request 679897 2,4-Dinitrophenol, 100 µg/ml, Acetonitrile, 5ml Price on request