Penicillin G potassium, 100µg/mL in Acetonitrile, 1ml

Crocetane, 1000µg/ml in Isooctane, 1ml

Profenofos, 100 µg/ml, Toluene, 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