4-tert-Octylphenol-13C6

4-n-Nonylphenol-di-ethoxylate, 100 µg/ml, Acetoni

Trichloroethene, 1000µg/ml in MeOH, 1ml

13C LABELED PCB MIXTURE PCBS-77/101/141/178 10UG/ML IN NONANE