2-Chloronaphthalene, 50µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 91-58-7

4,4'-DDE, 10.0 µg/ml, Ethyl acetate, 10ml

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Light 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)

cis-1,2-Dichloroethylene, 100µg/ml in MeOH, 5ml