Internal Standard Stock Solution, 1.2ml, nonane Back Catalog number: EPA-23ISS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 70101 4,4’-DDT Price on request 3737.12-100-IO 2,2',3,4'-Tetrachlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 36559-22-5 Price on request 1337.16-K-TX10 Fluoranthene-d10, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 93951-69-0 Price on request