EPA Method 8240A Matrix Spiking Standard

Methamidophos, 100 µg/ml, Ethyl acetate, 5ml

Tetraphenyltin, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 595-90-4

1-Methylfluoranthene, 100µg/ml in Acetonitrile,5ml