Solid-phase microextraction (SPME) is a reference technique in the analytical sample preparation context. Since its proposal at the ends of the 1980s, the technique has been continuously evolving. While in the first decades of SPME evolution, in-fiber and in-tube approaches were extensively used in different application fields, thin-film microextraction emerged in the 2000s as an attempt to increase the extraction kinetics by the reduction of the coating thickness. Alternatively, the integration of the coating in the stirring element (which is essential to guarantee the mass transference from the bulk sample to the sorptive phase) led to the stir bar sorptive extraction technique. This chapter describes in detail each one of these techniques making emphasis on their basics. The chapter must be read in the context of the book. In this sense, some of the techniques have opened the door to new workflows (e.g., integration of sampling and extraction) that are specially considered in other chapters. Additionally, some of the materials described in the second block of chapters of this book can find application in SPME-related techniques.
3 - Solid-phase microextraction
A. Naccarato;
2021-01-01
Abstract
Solid-phase microextraction (SPME) is a reference technique in the analytical sample preparation context. Since its proposal at the ends of the 1980s, the technique has been continuously evolving. While in the first decades of SPME evolution, in-fiber and in-tube approaches were extensively used in different application fields, thin-film microextraction emerged in the 2000s as an attempt to increase the extraction kinetics by the reduction of the coating thickness. Alternatively, the integration of the coating in the stirring element (which is essential to guarantee the mass transference from the bulk sample to the sorptive phase) led to the stir bar sorptive extraction technique. This chapter describes in detail each one of these techniques making emphasis on their basics. The chapter must be read in the context of the book. In this sense, some of the techniques have opened the door to new workflows (e.g., integration of sampling and extraction) that are specially considered in other chapters. Additionally, some of the materials described in the second block of chapters of this book can find application in SPME-related techniques.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
