Permethrin, 10 µg/ml, Ethyl acetate, 10ml

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

Selenium (IV) Selenite, 1000µg/ml in Water, 100ml

Volatiles Mix D1, 200µg/ml in MeOH, 1ml