Semi-Volatile Standard Back Catalog number: 20328 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-C40 Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane Price on request 673686 Pyrazophos, 100 µg/ml, Ethyl acetate, 5ml Price on request 0350.14-K-T 1-Methylfluorene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1730-37-6 Price on request