1,2,3,4-Tetrachloronaphthalene, 1.2ml x 50ug/ml, nonane Back Catalog number: PN-27S Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended EPA-8280ISB Additional Internal Standard Solution, 1.2ml, toluene Price on request 676345 Perfluorooctane sulfonamide, 100mg Price on request MDF-12346789 Octachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene Price on request