
Development of a new sample preparation method based on liquid-liquid-liquid extraction combined with dispersive liquid-liquid microextraction and its application on unfiltered samples containing high content of solids
Keywords: DLLME; dispersive liquid-liquid microextraction; ECD; electron capture detector; EF; enrichment factor; FID; flame ionization detection; ER; extraction recovery; GC; gas chromatography; HF-LPME; hollow fiber-liquid phase microextraction; HPLC; high