Spirotetramat, 100 µg/ml, Acetonitrile, 5ml

Nitrite as NO2-

Fenitrothion, 100 µg/ml, Toluene, 1ml

EPA O-FID Quantitative Calibration Check Standard (without Internal Standard) 4 Analytes, each Wt.% as listed in RFA Gasoline; units: 1x10mL, 5x10mL Name Wt.% Name Wt.% Methanol 4.0Methyl tert-butyl et