D5-threo-Chloramphenicol, 2mg

Sulfur Standard 2 Unit: 10mL screw cap bottle Chiron No. Matrix: Methanol Compound Concentration S-4073 Di-n-propyl sulfide 0.5 ppm (w/w) Di-n-butyl sulfide 0.5 ppm (w/w)

Linuron, 100mg

D5-Propachlor ESA sodium salt, 1mg