o,p'-DDT, 100µg/ml in MeOH, 1ml

PSA-CaCl2Mix 6

Nitrogen Calibration Set-Low Boiling Solvents Units: 1x1mL ampoules or 10mL screw-capped bottle Nitrogen introduced using Pyridine Catalogue No. Concentration Matrix: isooctane mg/kg (ppm) S-4140-0 Blank S-4140-03 0.3

6-Phosphoglucono-δ-lactone Ammonium Salt, 1mg