EPA Method 8240A Matrix Spiking Standard Back Catalog number: 82410 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680850 5-Hydroxy-2,4-D, 10mg Price on request 673522 Cyprodinil, 100 µg/ml, Ethyl acetate, 5ml Price on request 50626 Nitrite (NO2-) as N Price on request