2',3,3',4',5,5'-Hexachloro-4-[13C12]biphenylol, 1.2ml x 50ug/ml, toluene

Nitrogen Calibration Set-High Boiling Solvents, Blanc 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

n-Pentyl-iso-pentyl phthalate-3,4,5,6-d4 (n-Pentyl-3-methylbutyl phthalate-3,4,5,6-d4), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

Formaldehyde-2,4-DNPH, 1000µg/ml in AL, 5ml