ID | 114226 |
著者 |
Becchaku, Yuta
Tokushima University
Tomiyama, Yuki
Tokushima University
|
キーワード | Graphene
affinity capillary electrophoresis
sodium dodecylbenzenesulfonate
polyethylene glycol
effective electrophoretic mobility
number of theoretical plates
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資料タイプ |
学術雑誌論文
|
抄録 | Water-soluble nonionic polymers of polyethylene glycol (PEG), poly(vinyl alcohol) (PVA), and polyvinylpyrrolidone (PVP) were examined to develop the dispersion of graphene in an aqueous surfactant solution. Sodium dodecylbenzenesulfonate was used as an anionic surfactant to disperse graphene in an aqueous solution and to give negative charge on it. The dispersion of graphene was monitored through the electropherograms in affinity capillary electrophoresis; a broad peak for the dispersed graphene and shot signals for the aggregated one. When PEG was added in the separation buffer as an affinity reagent, the number of the shot signals in the electropherogram was reduced; PEG can develop the dispersion of graphene in an aqueous surfactant solution. The dispersion was also developed with PVP or PVA. The effective electrophoretic mobility of the dispersed graphene was reduced by using the polymer as an affinity reagent. The result suggested that the anionic surfactant on the graphene surface was competitively substituted with the nonionic polymer. The degree of the decrease in the effective electrophoretic mobility was larger with PEG with a high-molecular mass. The broad peak of the dispersed graphene got narrower by the addition of PEG, and the number of theoretical plates was improved.
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掲載誌名 |
Analytical Sciences
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ISSN | 13482246
09106340
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cat書誌ID | AA10500785
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出版者 | The Japan Society for Analytical Chemistry
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巻 | 35
|
号 | 3
|
開始ページ | 307
|
終了ページ | 313
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発行日 | 2019-03-10
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EDB ID | |
出版社版DOI | |
出版社版URL | |
フルテキストファイル | |
言語 |
eng
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著者版フラグ |
出版社版
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部局 |
理工学系
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