Para-phenylenediamine,100 µg/mL,acetonitrile,1mL,

2,4-Dichlorophenylacetic acid methyl ester

Nitrogen Calibration Set-High Boiling Solvents, Blanc 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

2,4-DB-methyl ester, 250mg