Carbofuran-3-hydroxy, 100 µg/ml, Acetonitrile, 5

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)

Spike Sample Standard 3

bis(4-Chlorophenyl)acetic acid