Liquid chromatography methods as a solution to inaccuracies associated with purity assessment of citric acid-based carbon dots
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F24%3A00588313" target="_blank" >RIV/61389013:_____/24:00588313 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0026265X24013523?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0026265X24013523?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.microc.2024.111240" target="_blank" >10.1016/j.microc.2024.111240</a>
Alternative languages
Result language
angličtina
Original language name
Liquid chromatography methods as a solution to inaccuracies associated with purity assessment of citric acid-based carbon dots
Original language description
Herein, several analytical techniques aimed on validation of separation effectiveness of free molecular fluorophores from citric acid-based carbon dots were elaborated and compared. Generally, chromatographic methods were found more reliable than steady-state optical measurements, pointing at the LC-FLD (liquid chromatography coupled to fluorescence detector) protocols as the most sensitive. Furthermore, the applicability of the frequently reported 1H NMR technique for confirmation of the absence of highly fluorescent free low-molecular weight species in carbon dots samples was called into question. It was found that, in the case of effectively PL emitting compounds (such as 5-oxo-2,3- dihydro-5H-[1,3]thiazolo[3,2-a]pyridine-3,7-dicarboxylic acid (TPA)), the lowest concentration that could be detected with above technique (0.08 mg mL−1 of TPA) is higher than the concentration at which the particular fluorophore shows the brightest PL emission (∼0.01 mg mL−1 of TPA).
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Microchemical Journal
ISSN
0026-265X
e-ISSN
1095-9149
Volume of the periodical
205
Issue of the periodical within the volume
October
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
111240
UT code for WoS article
001280603400001
EID of the result in the Scopus database
2-s2.0-85199256130