Overview of preparation methods

Routine methods that are employed in environmental trace analysis.

Extraction phase		Sample matrix containing analyte
into which analyte is transferred		liquid		solid		gaseous
liquid		- Liquid-liquid extraction (LLE)		- (Accelerated) Solvent extraction ((A)SE) - Supercritical fluid extraction (SFE)		___
solid		- Solid phase extraction (SPE) - Solid phase microextraction (SPME)		___		- Solid phase microextraction (SPME) - Filter techniques (FT)
gaseous		- Purge and trap (PT)		- Supercritical fluid extraction (SFE)		___