Native PCB Stock Solution , 1.2ml , nonane

Ethanol standard in water,1.5g/L,water, 3mL

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)

Isofenphos