Micro-Solid Phase Extraction of Polycyclic Aromatic Hydrocarbons in Water using either C18 or Molecularly Imprinted Polymer Membranes: Analytical Merits and Limitations

Sample pre-treatment is often the bottleneck in an analytical process. Due to drawbacks of conventional sample methods, microextraction utilizing lower amounts adsorbents and organic solvents are therefore favoured. A micro-solid phase extraction (μ-SPE) technique coupled with gas chromatography-flame ionization detection (GC-FID) was successfully developed for analysis selected polycyclic aromatic hydrocarbons (PA Hs), namely phenanthrene, fluoranthene, pyrene, environmental water. In this study, μ-SPE techniques using C18 molecularly imprinted polymer (MIP) membranes were optimized, validated, applied PA Hs water samples. The merits compared, two methods evaluated terms linearity, repeatability, relative recovery. Under optimal conditions, both either or MIP as offered comparable ultratrace range 0.003 0.01 μg L–1. strength superior that low molecular weights from presence humic acid a matrix factor. C18membranes overcome non-covalence interaction between thus achieve better