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@article{983341, author = {Vaněk, Jakub and Lubal, Přemysl and Ševčíková, Romana and Polášek, Miloslav and Hermann, Petr}, article_location = {Amserdam}, article_number = {8}, doi = {http://dx.doi.org/10.1016/j.jlumin.2012.03.018}, keywords = {Sensor; Ln(III) ion determination; macrocyclic ligand; spectrofluorimetry; speciation analysis; luminophore analysis}, language = {eng}, issn = {0022-2313}, journal = {Journal of Luminescence}, title = {Mono(pyridine-N-oxide) analog of DOTA as a suitable organic reagent for a sensitive and selective fluorimetric determination of Ln(III) ions}, url = {http://www.sciencedirect.com/science/article/pii/S0022231312001512}, volume = {132}, year = {2012} }
TY - JOUR ID - 983341 AU - Vaněk, Jakub - Lubal, Přemysl - Ševčíková, Romana - Polášek, Miloslav - Hermann, Petr PY - 2012 TI - Mono(pyridine-N-oxide) analog of DOTA as a suitable organic reagent for a sensitive and selective fluorimetric determination of Ln(III) ions JF - Journal of Luminescence VL - 132 IS - 8 SP - 2030-2035 EP - 2030-2035 PB - Elsevier SN - 00222313 KW - Sensor KW - Ln(III) ion determination KW - macrocyclic ligand KW - spectrofluorimetry KW - speciation analysis KW - luminophore analysis UR - http://www.sciencedirect.com/science/article/pii/S0022231312001512 L2 - http://www.sciencedirect.com/science/article/pii/S0022231312001512 N2 - The mono(pyridine-N-oxide) analog of the H4dota macrocylic ligand, H3do3a-pyNO, is capable of forming thermodynamically stable and kinetically inert Ln(III) complexes. Its Eu(III) and Tb(III) complexes display a strong long-lived fluorescence as a result of the antenna effect of the pyridine- N-oxide fluorophore in the reagent. It is shown that H3do3a-pyNO can be used as a fluorogenic reagent for the determination of Eu(III) and Tb(III) at pH 6.5 and cL 1 mM. At an excitation wavelength of 286 nm, the emission maxima are 615 nm (Eu(III)-complex), and 547 nm (Tb(III)complex). Detection limits are at concentrations around 1.0 mM and linearity of the method spans over 2 orders of magnitude. The method was applied to artificial and real samples (spiked mineral waters, extracts from cathode ray tube luminophore dust) and gave satisfactory results. The method is simple, rapid, and hardly interfered by other metal ions. ER -
VANĚK, Jakub, Přemysl LUBAL, Romana ŠEVČÍKOVÁ, Miloslav POLÁŠEK and Petr HERMANN. Mono(pyridine-N-oxide) analog of DOTA as a suitable organic reagent for a sensitive and selective fluorimetric determination of Ln(III) ions. \textit{Journal of Luminescence}. Amserdam: Elsevier, 2012, vol.~132, No~8, p.~2030-2035. ISSN~0022-2313. Available from: https://dx.doi.org/10.1016/j.jlumin.2012.03.018.
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