4-Nonylphenol, mixture of nonyl isomers, 1000µg/mLin Isooctane, 1ml

2,3,4-Tribromodibenzofuran, 1.2ml x 50ug/ml, toluene

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)

Octadecanamide