Internal Standard Stock Solution, 1.2ml, nonane Back Catalog number: EPA-23ISS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 678338 Crotoxyphos, 100 µg/ml, Isooctane, 1ml Price on request FS-1000 Mass-Labelled PCDF Solution/Mixture, 1.2ml, nonane Price on request 10736.12-100-IO 2,2',3,3',4,4'-Hexachlorobiphenyl Price on request