Oxalic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 144-62-7

Sildenafil-d8 (piperazine-d8),100 µg/mL,MeOH,1mL

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

1,2,3,7,8,9-Hexachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene