2,4-DB-methyl ester, 10.0 µg/ml, Ethyl acetate,

Nitrogen Calibration Set-High Boiling Solvents Units: 1x1mL ampoules or 10mL screw-capped bottle Nitrogen introduced using Carbazole Catalogue No. Concentration Matrix: isooctane mg/kg (ppm) S-4141-0 Blank S-4141-03

525 Spike Mix

Chlorthiophos