2013
Luminescent Sensor for Carbonate Ion Based on Lanthanide (III) Complexes of 1,4,7,10-Tetraazacyclododecane-1, 4,7-Triacetic Acid (DO3A)
VANĚK, Jakub, Přemysl LUBAL, Petr HERMANN a Pavel ANZENBACHER JR.Základní údaje
Originální název
Luminescent Sensor for Carbonate Ion Based on Lanthanide (III) Complexes of 1,4,7,10-Tetraazacyclododecane-1, 4,7-Triacetic Acid (DO3A)
Název česky
Luminescenční sensor na bázi Ln (III) Komplexů 1,4,7,10-Tetraazacyklododecane-1, 4,7-Trioctové kyseliny (DO3A) pro stanovení uhličitanů
Autoři
VANĚK, Jakub (203 Česká republika, domácí), Přemysl LUBAL (203 Česká republika, garant, domácí), Petr HERMANN (203 Česká republika) a Pavel ANZENBACHER JR. (203 Česká republika)
Vydání
Journal of fluorescence, Springer, 2013, 1053-0509
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10406 Analytical chemistry
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 1.667
Kód RIV
RIV/00216224:14310/13:00067540
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000314094000008
Klíčová slova anglicky
Luminescent probe; Anions; Carbonate; Lanthanide complexes; DOTA derivative;. Speciation monitoring
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 7. 4. 2014 16:39, Ing. Andrea Mikešková
Anotace
V originále
Lanthanide(III) complexes of 1,4,7,10_tetraazacyclododecane- 1,4,7_triacetic acid (H3DO3A) are suggested as sensors for sensitive luminescence-based determination of a carbonate anion. Thermodynamic study of association of [Eu(H2O)2(DO3A)] with bidentate anionic ligands using luminescence spectroscopy reveals consequence of an increasing chelate ring size. The ternary [Eu(DO3A)(picolinate)] and [Tb(DO3A)(picolinate)] complexes show improved photophysical properties due to the antenna effect of the picolinate anion. High quenching effect of carbonate anion and, to a lesser extent also oxalate, enables construction of a linear calibration plot utilizing optimized experimental conditions (e.g. c (LnL) = 0.1 mM, c_picolinate 2–5 mM, pH 7.4, lambda_exc 286 nm, etc.) for carbonate determination in solution. Both sensors show a comparable sensitivity and the detection limit of about 0.4mM. In order to improve the photophysical properties of Ln(III) sensor by shift of excitation wavelength about 40 nm to VIS range, the isoquinoline-3-carboxylic acid (IQCA) as antenna ligand was employed instead of picolinic acid. The analysis of commercial samples of European mineral waters was carried out and they were compared to the results obtained by capillary isotachophoresis to confirm there is no inherent (systematic) error to the present analysis. The Ln(III) sensor with IQCA is recommended since it has a better robustness than that with picolinate. The present analytical method is simple and rapid, and it is useful for sensitive determination of bicarbonate/carbonate concentration in water samples under aerobic conditions.
Návaznosti
| ED1.1.00/02.0068, projekt VaV |
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| LC06035, projekt VaV |
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| ME09065, projekt VaV |
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