Metribuzin, 100µg/mL in Acetonitrile, 1ml

Ethanol standard in serum,3.0g/L,serum, 3mL

Acephate, 10.0 µg/ml, Ethyl acetate, 10ml

Methyl-2,3,4,5-tetrabromobenzoate, 1.2ml x 50ug/ml, toluene