Solid-phase extraction of organic compounds: A critical review. part ii

This part focuses on the advantages and disadvantages of SPE versus liquid-liquid extraction (LLE), controversies and contradictions found in the literature with respect to the selection of sorbents, optimization of conditioning and elution protocols and recoveries by SPE. Moreover, it reveals the lack of selectivity of most sorbents and SPE protocols. It is divided into the following sections: applications of SPE, fractionation by SPE, outlook and conclusions.