Nitrogen Calibration Set - Low Boiling Solvents, 8 x 1mL Back Catalog number: D-4629-LB-CAL-R1- Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-A Mass-Labelled PCDD Internal Standard Solution, 1.2ml x 1ug/ml, nonane Price on request 3411.9-100 Folpet, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 133-07-3 Price on request 91761A CLP - Semi-Volatile Acid Standard Price on request