Heptachlor, 1000µg/ml in Hexane, 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)

Sodium N-methyl-N-coconut acid taurate

Chloroform, 99+%,100 µg/mL,MeOH,1mL,