| Item type |
文献 / Documents(1) |
| 公開日 |
2020-08-17 |
| アクセス権 |
|
|
アクセス権 |
open access |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版社版DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.2116/analsci.19P484 |
|
|
言語 |
ja |
|
|
関連名称 |
10.2116/analsci.19P484 |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| タイトル |
|
|
タイトル |
Capillary Electrophoretic Characterization of Water-soluble Carbon Nanodots Formed from Glutamic Acid and Boric Acid under Microwave Irradiation |
|
言語 |
en |
| 著者 |
髙栁, 俊夫
イワサキ, ソウタ
ベッチャク, ユウタ
ヤベ, シュン
モリタ, コウタロウ
水口, 仁志
ヒラヤマ, ナオキ
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Water-soluble carbon nanodots (CND) were synthesized under microwave irradiation from glutamic acid or glutamic acid–boric acid mixture. The CNDs were collected in an aqueous solution through size fractionation by centrifugal filtration. The CNDs thus prepared were subjected to characterization by capillary electrophoresis (CE). A peak signal of anionic substance was detected in the electropherogram, and it was found to be a major component of the CNDs. The effective electrophoretic mobility of the major component was almost identical over the pH range between 6.7 and 11.6, suggesting that the functional group of amine or boric acid moiety was not included in the CNDs. The effective electrophoretic mobility decreased at an acidic pH of less than 5, and it was suggested that carboxylate moiety was included in the CNDs. A signal of less-charged CNDs was also detected in the electropherogram, and the CNDs were characterized by a CE format of micellar electrokinetic chromatography. Two or four peaks were detected just after the electroosmotic flow; the less-charged CNDs were thus hydrophilic. The affinity interaction was also examined between the major anionic CNDs and a hydrophobic pairing cation. The peak signal of the major anionic CNDs broadened, and its theoretical number of plates decreased in the presence of tetrabutylammonium ion in the separation buffer. A small portion of the anionic CNDs were a little hydrophobic at different degrees, and their effective electrophoretic mobility decreased by the hydrophobic interaction, resulting in peak broadening of the anionic CNDs. |
|
言語 |
en |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Carbon nanodot |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
characterization |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
capillary electrophoresis |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
micellar electrokinetic chromatography |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
affinity capillary electrophoresis |
| 書誌情報 |
en : Analytical Sciences
巻 36,
号 8,
p. 941-946,
発行日 2020-08-10
|
| 収録物ID |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
13482246 |
| 収録物ID |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
09106340 |
| 収録物ID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA10500785 |
| 出版者 |
|
|
出版者 |
The Japan Society for Analytical Chemistry |
|
言語 |
en |
| EID |
|
|
識別子 |
362803 |
|
識別子タイプ |
URI |
| 言語 |
|
|
言語 |
eng |
analsci_36_8_941.pdf (283 KB)
