Premium
Application of Luminescent BSA‐Capped CdS Quantum Dots as a Fluorescence Probe for the Detection of Cu 2+
Author(s) -
Han SuQin,
Liu JianLi,
Gan ZhiGang,
Liang JianGong,
Zhao ShouMiao
Publication year - 2008
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200800156
Subject(s) - chemistry , fluorescence , detection limit , bovine serum albumin , quantum dot , luminescence , aqueous solution , linear range , analytical chemistry (journal) , nuclear chemistry , chromatography , nanotechnology , optoelectronics , optics , physics , materials science
CdS Quantum dots (QDs) are synthesized in aqueous solution with bovine serum albumin (BSA) as the stabilizing agents using a stepwise procedure at room temperature. They can be used as a new fluorescence probe in the determination of Cu 2+ , which is proved to be a simple, rapid and specific method. Approximate concentrations of other physiologically important cations, such as Zn 2+ , K + etc, have no effect on the fluorescence. Under the optimum condition, the response is linear to the concentration of Cu 2+ in the range of 0‐80.0 μol/L, and the detection limit is 50.0 nmol/L. This method is used to the determination of Cu 2+ in human hair, the recovery is 98‐104%. And the possible detection mechanism is also discussed.