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| Type |
Poster Presentation |
| Area |
Analytical Chemistry |
| Room No. |
Exhibition Hall 2 |
| Time |
4월 19일 (금요일) 11:00~12:30 |
| Code |
ANAL.P-257 |
| Subject |
Single Bubble Microextraction Coupled with Capillary Electrophoresis |
| Authors |
Xamyo Noulorsaytour , Doo Soo Chung1,*
Chemistry, Seoul National University, Laos
1Division of Chemistry, Seoul National University, Korea
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| Abstract |
Headspace (HS) extraction is a technique that have been developed for analysis volatile compounds. In conventional HS extraction, analytes evaporated from a donor phase (acidic) to the headspace and can be enriched to an acceptor phase (basic). The maximum enrichment factor is given by the ratio of the donor and acceptor volumes. Thus a small acceptor volume is preferred. To solve the stability problem of the hanging drop, we recently developed HS in-tube microextraction (ITME) coupled with CE using a basic run buffer solution inside capillary as an acceptor phase. To reduce the headspace area, and increase enrichment factor enriched in more smaller headspace, here we present a new technique, single bubble microextraction (SBME) coupled with CE. It is a simple technique and easy to conduct HS extraction of a small volume sample for CE analysis. To reduce the headspace area, a small air bubble was formed at the tip of a capillary by injecting a plug of air into the capillary containing an acceptor plug and ejecting the air plug after immersing the capillary into a sample donor vial. Then, SBME-CE was performed using the acceptor plug remained in the capillary. All steps of SBME-CE were carried out automatically using a commercial CE instrument without any modification. |
| E-mail |
xamyolor@gmail.com |
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123rd General Meeting of the KCS