d,l-Methadone

Thiofanox-sulfone, 10.0 µg/ml, Acetonitrile, 10m

EPA O-FID Quantitative Calibration Check Standard (with Internal Standard) 5 Analytes, each Wt.% as listed in RFA Gasoline; units: 1x5mL, 5x5mL Name Wt.% Name Wt.% Methanol 3.80Methyl tert-buty

Permethrin (mix isomers), 1000μg/ml in MeOH, 1ml