Antipyrine, 1000µg/ml in MeOH, 1ml

1,2,3,4,7,8,9-Heptachlorodibenzofuran,50 µg/mL,n-nonane,1mL

2,3-Dimethylpyridine,neat,neat,100mg,

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)