2015年5月19日
Simple and Effective Label-Free Capillary Electrophoretic Analysis of Sugars by Complexation Using Quinoline Boronic Acids
Analytical Chemistry
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- 巻
- 87
- 号
- 10
- 開始ページ
- 5068
- 終了ページ
- 5073
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1021/acs.analchem.5b00998
- 出版者・発行元
- American Chemical Society (ACS)
© 2015 American Chemical Society. An effective separation and detection procedure for sugars by capillary electrophoresis (CE) using a complexation between quinolineboronic acid (QBA) and multiple hydroxyl structure of sugar alcohol is reported. We investigated the variation of fluorescence spectra of a variety of QBAs with sorbitol at a wide range of pH conditions and then found that 5-isoQBA strongly enhanced the fluorescence intensity by the complexation at basic pH conditions. The other sugar alcohols having multiple hydroxyls also revealed the enhancement of the fluorescence intensity with 5-isoQBA, whereas the alternation of the intensity was not found in the sugars such as glucose. After optimization of the 5-isoQBA concentration and pH of the buffered solution in CE analysis, 6 sugar alcohols were successfully separated in the order based on the formation constants with 5-isoQBA, which were calculated from the variation of the fluorescence intensity with each sugar alcohol and 5-isoQBA. Furthermore, the limits of detection for sorbitol and xylitol by the CE method were estimated at 15 and 27 μM, respectively.
- リンク情報
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- DOI
- https://doi.org/10.1021/acs.analchem.5b00998
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/25907638
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000355057700010&DestApp=WOS_CPL
- URL
- https://pubs.acs.org/doi/pdf/10.1021/acs.analchem.5b00998
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84929645916&origin=inward
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84929645916&origin=inward
- ID情報
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- DOI : 10.1021/acs.analchem.5b00998
- ISSN : 0003-2700
- eISSN : 1520-6882
- PubMed ID : 25907638
- SCOPUS ID : 84929645916
- Web of Science ID : WOS:000355057700010