Mass-Labelled PCDD/PCB Sampling Spike, 1.2ml, nonane

Chlorpyrifos-methyl, 10.0 µg/ml, Ethyl acetate,

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)

β-1,2,5,6,9,10-Hexabromo[13C12]cyclododecane, 1.2ml x 50ug/ml, toluene