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Water-Soluble N-Acetyl-L-cysteine-Capped CdTe Quantum Dots Application for Hg(II) Detection
Joint Authors
He, Qingyi
Zhao, Dan
Yang, Tianming
Liu, Yuying
Zhu, Chaozhen
Source
Journal of Analytical Methods in Chemistry
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-07-09
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
A simple, rapid, and specific method for Hg(II) detection has been proposed based on the fluorescence change of N-acetyl-L-cysteine-capped CdTe quantum dots (QDs).
The presence of Hg(II) ions could quench the fluorescence of QDs at 565 nm and meanwhile produce new peak in 700–860 nm wavelength range.
The linear response range is 20–430 nM with the detection limit at 8.0 nM Hg(II).
It was found that the position of the new peak was irrelevant to the size of QDs.
Furthermore, the mechanism of the quenching of QDs fluorescence by Hg(II) and the appearance of new peak in near-infrared area were also discussed and deduced through ultraviolet absorption spectrum, fluorescence spectrum, and X-ray photoelectron spectrum.
American Psychological Association (APA)
Yang, Tianming& He, Qingyi& Liu, Yuying& Zhu, Chaozhen& Zhao, Dan. 2013. Water-Soluble N-Acetyl-L-cysteine-Capped CdTe Quantum Dots Application for Hg(II) Detection. Journal of Analytical Methods in Chemistry،Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-506697
Modern Language Association (MLA)
Yang, Tianming…[et al.]. Water-Soluble N-Acetyl-L-cysteine-Capped CdTe Quantum Dots Application for Hg(II) Detection. Journal of Analytical Methods in Chemistry No. 2013 (2013), pp.1-6.
https://search.emarefa.net/detail/BIM-506697
American Medical Association (AMA)
Yang, Tianming& He, Qingyi& Liu, Yuying& Zhu, Chaozhen& Zhao, Dan. Water-Soluble N-Acetyl-L-cysteine-Capped CdTe Quantum Dots Application for Hg(II) Detection. Journal of Analytical Methods in Chemistry. 2013. Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-506697
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-506697