Flunixin, 100 µg/ml, Acetonitrile, 1ml

Sulfur, 500µg/g (0.0500 wt%) in Diesel Fuel, 100ml

4,4'-Methylenebis(3-chloro-2,6-diethylaniline), 100mg

Sulfosulfuron, 100µg/ml in Acetonitrile, 1ml