4,4'-Dibromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

Native PFCAs and PFSAs Solution/Mix, 2µg/ml in MeOH, 1,2ml

2,4-D methyl ester

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