Pyroxsulam, 100 µg/ml, Acetonitrile, 1ml

Tri-n-butyltin chloride, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-5, Cas.no. 1461-22-9

Zopiclone-d8 (piperazinyl-d8), 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. NA

EPA Method 8260 - Surrogate Standard