Please use this identifier to cite or link to this item:
https://scholarbank.nus.edu.sg/handle/10635/52705
DC Field | Value | |
---|---|---|
dc.title | Liquid-Phase Microextraction in a Single Drop of Organic Solvent by Using a Conventional Microsyringe | |
dc.contributor.author | He, Y. | |
dc.contributor.author | Lee, H.K. | |
dc.date.accessioned | 2014-05-16T07:36:51Z | |
dc.date.available | 2014-05-16T07:36:51Z | |
dc.date.issued | 1997-11-15 | |
dc.identifier.citation | He, Y.,Lee, H.K. (1997-11-15). Liquid-Phase Microextraction in a Single Drop of Organic Solvent by Using a Conventional Microsyringe. Analytical Chemistry 69 (22) : 4634-4640. ScholarBank@NUS Repository. | |
dc.identifier.issn | 00032700 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/52705 | |
dc.description.abstract | Two modes of liquid-phase microextraction (LPME) were developed for capillary gas chromatography. Both methodologies, i.e., static LPME and dynamic LPME, involve the use of very small amounts of organic solvent (<2 μL) in a conventional microsyringe. The performance of the two techniques is demonstrated in the determination of two chlorobenzenes extracted into a single drop of toluene by the use of a 10-μL syringe. Static LPME provided some enrichment (∼12-fold), good reproducibility (9.7%), and simplicity but suffered relatively long extraction time (15 min). Dynamic LPME provided higher (∼27-fold) enrichment within much shorter extraction time (∼3 min), and relatively poorer precision (12.8%), primarily due to repeated manual manipulation. Both methods allow the direct transfer of extracted analytes into a gas chromatograph. | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | CHEMISTRY | |
dc.contributor.department | CHEMICAL ENGINEERING | |
dc.description.sourcetitle | Analytical Chemistry | |
dc.description.volume | 69 | |
dc.description.issue | 22 | |
dc.description.page | 4634-4640 | |
dc.description.coden | ANCHA | |
dc.identifier.isiut | NOT_IN_WOS | |
Appears in Collections: | Staff Publications |
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