Metals Mix #2 Back Catalog number: 50305 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 675432 Prometryn, 250mg Price on request 8234.13-K-AN Benzaldehyde 2,4-dinitrophenylhydrazone, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. Price on request