D3-Alachlor ESA sodium salt, 100 µg/ml, Acetonitr

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

Dibromotoluene, 5000µg/mL in MeOH, 1ml

Formic acid