Journal of Luminescence, volume 145, pages 569-574
ZnSe quantum dots based fluorescence quenching method for determination of paeoniflorin
Publication type: Journal Article
Publication date: 2014-01-01
Journal:
Journal of Luminescence
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor: 3.6
ISSN: 00222313
General Chemistry
Biochemistry
Biophysics
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Abstract
Water soluble ZnSe quantum dots (QDs) modified by mercaptoacetic acid (MAA) were used to determinate paeoniflorin in aqueous solutions by the fluorescence spectroscopic technique. The results showed that the fluorescence of the modified ZnSe QDs could be quenched by paeoniflorin effectively in physiological buffer solution. The optimum fluorescence intensity was found to be at incubation time 10 min, pH 7.0 and temperature 25 °C. Under the optimal conditions, the detection limit of paeoniflorin was 7.30×10 −7 mol L −1 . Moreover, the quenching mechanism was discussed to be a static quenching procedure, which was proved by quenching rate constant K q (1.02×10 13 L mol −1 s −1 ).
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Chen Z. et al. ZnSe quantum dots based fluorescence quenching method for determination of paeoniflorin // Journal of Luminescence. 2014. Vol. 145. pp. 569-574.
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Chen Z., Chen J., Liang Q., Wu D., Zeng Y., Jiang B. ZnSe quantum dots based fluorescence quenching method for determination of paeoniflorin // Journal of Luminescence. 2014. Vol. 145. pp. 569-574.
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TY - JOUR
DO - 10.1016/j.jlumin.2013.07.071
UR - https://doi.org/10.1016/j.jlumin.2013.07.071
TI - ZnSe quantum dots based fluorescence quenching method for determination of paeoniflorin
T2 - Journal of Luminescence
AU - Chen, Zhi
AU - Chen, Jiayi
AU - Liang, Qiaowen
AU - Wu, Dudu
AU - Zeng, Yuaner
AU - Jiang, Bin
PY - 2014
DA - 2014/01/01 00:00:00
PB - Elsevier
SP - 569-574
VL - 145
SN - 0022-2313
ER -
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@article{2014_Chen,
author = {Zhi Chen and Jiayi Chen and Qiaowen Liang and Dudu Wu and Yuaner Zeng and Bin Jiang},
title = {ZnSe quantum dots based fluorescence quenching method for determination of paeoniflorin},
journal = {Journal of Luminescence},
year = {2014},
volume = {145},
publisher = {Elsevier},
month = {jan},
url = {https://doi.org/10.1016/j.jlumin.2013.07.071},
pages = {569--574},
doi = {10.1016/j.jlumin.2013.07.071}
}