Internal Standard Stock Solution, 1.2ml, nonane Back Catalog number: EPA-23ISS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 71460 2-Ethylanthracene Price on request DF-IS-D Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane Price on request 1454.16-100MG 4-tert-Butyl-2,6-diisopropylphenol, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 57354-65-1 Price on request