Trigonelline

2,2’,4,4’-Tetrachlorobiphenyl

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

4-n-Nonylphenol monoethoxylate, 1000µg/ml in Isooctane, 1ml