Isoproturon D6 (dimethyl D6), 100 ng/µl, 1.1ml

Low level Nitrogen Calibration Units: 1x1mL ampoules or 10mL screwcapped bottle Nitrogen introduced using Aniline Catalogue No. Concentration Matrix: isooctane mg/kg (ppm) S-4142-0 Blank S-4142-05 0.5 S-4142-1

Dalapon methyl ester

1,2,3,6,7,8-Hexachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene