Atrazine-desethyl-desisopropyl, 100mg

Low level Nitrogen & Sulfur Calibration Set Units: 1x1mL ampoules or 10mL screwcapped bottle Nitrogen introduced using Aniline / Sulfur introduced using di-n-Butyl Sulfide Catalogue No. Concentration Matrix: Benzene mg/kg (ppm) S-4143-0

Metribuzin, 100 µg/mL in MeOH, 1ml

2,3,5-Trichlorophenol