AN EVIDENCE FOR NITROPHENOLS CONTAMINATION IN ANTARCTIC FRESH-WATER AND SNOW. SIMULTANEOUS DETERMINATION OF NITROPHENOLS AND NITROARENES AT ng/L LEVELS

摘要

A selective method for simultaneous extraction and analysis of nitroarenes and nitrophenols ng/L levels from water samples is presented. Discontinue Liquid-Liquid extractions followed by a pre-concentration step (Enrichment Factor = 1000) were performed to separate and extract sixteen nitrophenols (NP) and nitroarenes (NA) from aqueous matrices, before a RP-HPLC and a FID-HRGC analyses, respectively.