Determination of phthalate esters in liquor samples by vortex‐assisted surfactant‐enhanced‐emulsification liquid–liquid microextraction followed by GC–MS

摘要: A novel method using vortex-assisted surfactant-enhanced-emulsification liquid-liquid microextraction has been developed for the extraction of phthalate esters (PAEs) in Chinese liquor samples prior to analysis by GC-MS. In proposed method, a high-density solvent (carbon tetrachloride) was dispersed into with aid surfactant (Triton X-100) and vortex agitation, resulting short equilibrium (30 s). After centrifugation, single microdrop easily collected GC-MS analysis. Key factors that affected efficiency were optimized. Under optimum conditions, linearity found range from 0.05 50 μg/L. Coefficients determination varied 0.9938 0.9971. LODs, based on an S/N 3, ranged 4.9 13 ng/L. Enrichment 140 184. Reproducibility recoveries assessed testing series three spiked different concentration levels. Finally, successfully applied PAEs 16 samples. this work, high-density-solvent first time proved be simple, rapid, sensitive.