Theory and practice of solid phase microextraction
- Univ. of Waterloo, Ontario (Canada); and others
Solid Phase Microextraction (SPME) involves exposing a fused silica fibre that has been coated with a non-volatile polymeric liquid to a sample or its headspace. The absorbed analytes are thermally desorbed in the injector of a gas chromatograph (GC) or GC-mass spectrometer. The fibre is contained in a syringe-like SPME device to facilitate convenient handling. This method can be applied to liquid, gaseous or headspace samples. All three sample can be analyzed on the same instrument without modifications to the GC and the extraction and the sample injection process can be fully automated using conventional autosampler. The fibre can be used to extract target analytes directly in the field without collecting a sample. Because of its cylindrical geometry it cannot be plugged. All three sample types can be analyzed on the isothermal instrument. Advantageous of SPME will be discussed using important applications - semi-volatile and volatile compounds in air, aqueous matrices and in the headspace above dirty aqueous samples, slurries and soils.
- OSTI ID:
- 466514
- Report Number(s):
- CONF-951017-; TRN: 96:005999-0046
- Resource Relation:
- Conference: 22. annual conference of the Federation of Analytical Chemistry and Spectroscopy Societies, Cincinnati, OH (United States), 15-20 Oct 1995; Other Information: PBD: 1995; Related Information: Is Part Of FACSS XXII - the 22nd annual conference of the Federation of Analytical Chemistry and Spectroscopy Societies; PB: 285 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Headspace solid-phase microextraction (HS-SPME) for the determination of benzene, toluene, ethylbenzene, and xylenes (BTEX) in foundry molding sand
Offline solid phase microextraction sampling system