4,4'-DDE, 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)

Diundecyl phthalate (mixture of branched isomers),

N,O-Bis(trimethylsilyl)trifluoroacetamide, neat, Solvent-neat, Unit 25g, # of units-1, Cas.no. 25561-30-2