(-)-Nicotine, 100 µg/ml, Methanol, 1ml

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Heavy White Oil (less than 20mg/kg S) Unit : 10mL screw-capped bottle Light White Mineral Oil Heavy White Mineral Oil (20 cSt at 40°C) (70 cSt at 40°C)

Extraction Standard Solution, in nonane/3.2% toluene, 1,2ml

Etrimfos, 10.0 µg/ml, Cyclohexane, 10ml