EPA Method 552,552.1,552.2 Internal Std

1,12-Dodecanedioic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 693-23-2

Dibutyltin-d18 dichloride, 1000µg/ml in IO, 1ml

Benzo[b]naphtho[1,2-d]thiophene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 205-43-6