Simple multi-residue analysis of persistent organic pollutants and molecular tracers in atmospheric samples.

ABSTRACT: We present a simple, selective and sensitive analytical method to quantitatively determine a wide range of halogenated persistent organic pollutants and molecular tracers in atmospheric samples. Identification and quantification was carried out by high-resolution gas chromatography, hyphenated with low-resolution mass spectrometry operating in electron impact (EI) and electron capture negative ionization (ECNI) mode. Optimization on a number of instrumental parameters was conducted to obtain ultra-trace detection limits, in the range of few fg/m³ for organohalogen compounds. Repeatability and reproducibility of the method was thoroughly evaluated. The analysis was validated with standard reference materials and successfully applied to actual atmospheric samples. The proposed mul

SUBMITTER: Iakovides M 

PROVIDER: S-EPMC10209013 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature