Pyridine

Terbumeton, 100 µg/ml, Toluene, 5ml

Chloridazon-desphenyl, 100µg/mL in Acetonitrile, 1ml

Methanol QC Reference Mixture III n-Butyl sulfide, 0.5 ppm (weight S by weight) in 99.9 % methanol; units: 1x10mL, 5x10mL