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

2,2',3,3',5,5',6-Heptachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

2,6-Mecoprop, 50mg

Estriol, 10 µg/ml, Acetonitrile, 10ml