Formothion, 100µg/ml in Acetonitrile

1,3,6-Trimethylchrysene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

n-Tetracosane-d50, 1000µg/ml in IO, 1ml

Method 200.8/1638/1640 Internal Standard