High enrichment and ultra-trace analysis of aflatoxins in edible oils by a modified hollow-fiber liquid-phase microextraction technique

Abstract

An improved approach for the ultra-trace analysis of aflatoxins B₁, B₂, G₁ and G₂ in edible oils was developed for the first time by a hollow-fiber liquid-phase microextraction (HF-LPME) technique. Good linearity, low limits of detection, high enrichment factors and good repeatability were obtained, which ensured the application of the method for ultra-trace detection of AFTs in edible oils.