Endrin, 10.0 µg/ml, Cyclohexane, 10ml

Carbofuran-3-hydroxy, 10mg

Loperamide, 1000µg/ml in MeOH, 1ml

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