Solid Phase Micro Extraction SPME
Solid Phase Micro Extraction (SPME) is a solvent-free sample preparation technology.
Since its introduction in the early 1990s, it has become a widely used technique for the extraction and enrichment of target analytes from a variety of matrices. It utilizes a coated fiber inside a syringe-like holder to extract and enrich volatile and semi-volatile compounds from a compound.
To extract the analytes from the sample, the coated part of the SPME fiber is either inserted directly into the sample solution or is held inside the headspace above the sample. In accordance with the laws of distribution and/or adsorption, the analytes will then accumulate in the coating. After the extraction step comes the desorption step. The purpose of that step is to release the analytes from the coating on the SMPE needle. This is generally performed thermally, without additional intermediate steps, in the injector of the gas chromatograph or by the eluent in the injector of a High Performance Liquid Chromatography (HPLC).
All of the necessary steps can be automated using multi purpose sampler.
Fidbers type:
- SPME standard fiber
- SPME-FFA standard fiber
- SPME-FFA Arrow.