High-resolution gas chromatography retention data as basis for the estimation of KOW values using PCB congeners as secondary standards.

摘要: We estimated Kow values that are usually derived by liquid chromatography solely from gas chromatographic (GC) data selective correlation with PCB congeners as secondary standards. The GC method was established and validated literature-known obtained other methods. Twenty-seven chlorinated diphenyl ethers (PCDE), 19 naphthalenes (PCN), 4,4‘-DDE, three brominated (PBDE) were used for validation. advantages of our only amounts in the nanogram range or less needed, complex mixtures can be analyzed, isomers determined, even exact structure compounds does not have to known. quality mainly depends on accuracy standards correlation. These should based reliable experimental Our semi-experimental approach approximating physicochemical relevant environmental distributio...