| Autor: |
Yeneva Alves-Iglesias, Pilar Bermejo-Barrera, Ana María García-Deibe, Matilde Fondo, Jesús Sanmartín-Matalobos |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Chemistry Proceedings, Vol 12, Iss 1, p 92 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2673-4583 |
| DOI: |
10.3390/ecsoc-26-13561 |
| Popis: |
The Schiff base ligand H2SB derived from the condensation of N-(2-aminobenzyl)-5-(dimethylamino)naphthalene-1-sulfonamide with 4-formyl-3-hydroxybenzoic acid has been investigated as a chemosensor for the detection of CdSe-Cys QDs in water samples. We immobilized H2SB onto cellulose paper by forming an amide bond, which results from the condensation of a carboxylic acid and an amine. Three dominant signals located around 270, 330, and 420 nm in the diffuse reflectance spectrum of the H2SB-modified paper demonstrated its immobilization. A linear decrease can be observed in the absorbance of the 270 nm band with the increase of the CdSe-Cys QDs concentration from 100 ppb to 2 ppm. The LOD and LOQ show values of 245 and 815 ppb, respectively. An interaction via metal–ligand coordination between CdSe-Cys QDs and H2SB has been demonstrated with 1H NMR, ATR-FTIR, and UV-Vis spectroscopy. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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