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Solid-phase microextraction
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Solid-phase microextraction : ウィキペディア英語版
Solid-phase microextraction

Solid-phase microextraction, or SPME, is a solid phase extraction sampling technique that involves the use of a fiber coated with an extracting phase, that can be a liquid (polymer) or a solid (sorbent), which extracts different kinds of analytes (including both volatile and non-volatile) from different kinds of media, that can be in liquid or gas phase. The quantity of analyte extracted by the fibre is proportional to its concentration in the sample as long as equilibrium is reached or, in case of short time pre-equilibrium, with help of convection or agitation.
==Analysis==
After extraction, the SPME fiber is transferred to the injection port of separating instruments, such as a gas chromatography and mass spectrometry, where desorption of the analyte takes place and analysis is carried out.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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