Benzo(b)fluoranthene

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

Tadalafil, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 171596-29-5

Glutaraldehyde-DNPH, 10.0 µg/ml, Acetonitrile, 1