Ionic liquid-functionalized carbon dots with positive surface charge for selective detection of ascorbic acid

Xu Ouwen; Wan Shuyu; Yang Jing; Song Hanyang; Xia Ji; Dong Luzheng; Zhu Xiashi

doi:10.1007/s42823-022-00427-6

Ionic liquid-functionalized carbon dots with positive surface charge for selective detection of ascorbic acid

Carbon Letters
Abbr : Carbon Lett.
2023, 33(2), pp.387-395
DOI : 10.1007/s42823-022-00427-6
Publisher : Korean Carbon Society
Research Area : Natural Science > Natural Science General > Other Natural Sciences General
Received : June 10, 2022
Accepted : October 17, 2022
Published : March 1, 2023

Xu Ouwen ¹, Wan Shuyu ¹, Yang Jing ¹, Song Hanyang ¹, Xia Ji ¹, Dong Luzheng ¹, Zhu Xiashi ¹

¹Yangzhou University

Accredited

ABSTRACT

Novel ionic liquid-functionalized carbon quantum dots (IL-CDs) were prepared by hydrothermal method, and characterized with FT-IR, TEM and XPS. The IL-CDs exhibited narrower particle size distribution with more uniform dispersion and the surface potential changes from negative to positive due to the function of IL. IL-CDs could be quenched (“turned off”) after adding ascorbic acid (AA), and as an “on–off”, fluorescent probe could be established for direct analysis AA. The linear range of AA was 0.34–30.00 μg/mL and the LOD was 0.11 μg/mL. The method was successfully applied to the determination of AA in real samples with satisfactory results.

KEYWORDS

Carbon quantum dots Functionalization Ionic liquid Fluorescent probe Pharmaceutical analysis

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Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 6.04

Ionic liquid-functionalized carbon dots with positive surface charge for selective detection of ascorbic acid

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This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-26)

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Scopus Citation Counts (3) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

* References for papers published after 2023 are currently being built.

Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 6.04

Ionic liquid-functionalized carbon dots with positive surface charge for selective detection of ascorbic acid

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WoS Citation Counts (2) This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-26)

Total Citation Counts(KCI+WOS) (2) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (3) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

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