TY  - JOUR
TI  - Fluorescent sensing platform for low-cost detection of Cu2+ by coumarin
derivative: DFT calculation and practical application in herbal and black tea
samples
AB  - A fluorogenic probe based on a coumarin-derivative for $Cu^{2+}$ sensing in $CH_3 CN/H_2 O$ media (v/v, 95/5, 5.0
µM) was developed and applied in real samples. 3-(4-chlorophenyl)-6,7-dihydroxy-coumarin (MCPC) probe was obtained
by synthetic methodologies and identified by spectral techniques. The probe MCPC showed remarkable changes with a
“turn-off” fluorogenic sensing approach for the monitoring of $Cu^{2+}$ at 456 nm under an excitation wavelength of 366 nm.
The response time of the probe MCPC was founded as only 1 min. The detection limit of the probe MCPC was recorded
to be 1.47 nM. The binding constant and possible stoichiometric ratio (1:1) values were determined by Benesi-Hildebrand
and Job’s plot systems, respectively. The mechanism of the probe MCPC with $Cu^{2+}$ was further confirmed by ESI-MS
and FT-IR analyses, as well as supported by theoretical calculations. Furthermore, the probe MCPC was successfully
employed for the practical applications to sense $Cu^{2+}$ in different herbal and black tea samples. The proposed sensing
method was also verified by ICP-OES method.
AU  - KORAN, Kenan
AU  - Aydin, Duygu
AU  - KARAGOZ, Abdurrahman
AU  - YILMAZ, Ibrahim
AU  - OZEN, FURKAN
AU  - Görgülü, Ahmet Orhan
AU  - ARSLAN, FATMA NUR
AU  - SAVRAN, TAHIR
AU  - KARUK ELMAS, Sukriye Nihan
DO  - 10.3906/kim-2004-63
PY  - 2020
JO  - Turkish Journal of Chemistry
VL  - 44
IS  - 4
SN  - 1300-0527
SP  - 1148
EP  - 1163
DB  - TRDizin
UR  - http://search/yayin/detay/522837
ER  -