DongQin Yang
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
DongQin Yang has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
- Funan Chen
School of Chemistry and Chemical Engineering Southwest University Chongqing China
2 shared publications Na Cai
The Key Laboratory of Luminescence and Real-time Analytical Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P. R. China
1 shared publicationYanYan He
Zunyishi Naibai Middle School, Guizhou, P. R. China
1 shared publicationYanyan He
The Key Laboratory of Luminescence and Real-time Analytical Chemistry, Ministry of Education; School of Chemistry and Chemical Engineering, Southwest University, Chongqing, People's Republic of China
1 shared publication
Latest Publications
- 30 April 2018
- Published by Wiley in Luminescence
- Vol. 33 (5) , 871-876
Enhanced chemiluminescence of the fluorescein–KIO4 system by CdTe quantum dots for determination of catechol
In this paper, a novel chemiluminescence (CL) system was introduced based on the use of CdTe quantum dots (QDs) with the mixture solutions of fluorescein and potassium periodate (KIO4) in alkaline medium. The CL signal of an ultra‐weak system was strongly enhanced in the presence of QDs. The application of CdTe QDs–fluorescein–KIO4 system is reported for the first time. It was found that catechol had a diminishing effect on the CL reaction. Under optimal experimental conditions, CL intensity decreased linearly in a 1 to 100 μM catechol concentration range, with a 0.18 μM detection limit. A possible reaction mechanism was proposed according to the results of kinetic analyses, CL spectra, ultraviolet–visible and fluorescence spectra. The results pointed to an efficient energy transfer between the CL energy donor CdTe QDs and acceptor fluorescein. Finally, the CL method was successfully applied to the determination of catechol in environmental water samples.
- 30 April 2018
- Published by Wiley in Luminescence
- Vol. 33 (5) , 871-876
Enhanced chemiluminescence of the fluorescein–KIO4 system by CdTe quantum dots for determination of catechol
In this paper, a novel chemiluminescence (CL) system was introduced based on the use of CdTe quantum dots (QDs) with the mixture solutions of fluorescein and potassium periodate (KIO4) in alkaline medium. The CL signal of an ultra‐weak system was strongly enhanced in the presence of QDs. The application of CdTe QDs–fluorescein–KIO4 system is reported for the first time. It was found that catechol had a diminishing effect on the CL reaction. Under optimal experimental conditions, CL intensity decreased linearly in a 1 to 100 μM catechol concentration range, with a 0.18 μM detection limit. A possible reaction mechanism was proposed according to the results of kinetic analyses, CL spectra, ultraviolet–visible and fluorescence spectra. The results pointed to an efficient energy transfer between the CL energy donor CdTe QDs and acceptor fluorescein. Finally, the CL method was successfully applied to the determination of catechol in environmental water samples.
- 29 March 2017
- Published by Wiley in Luminescence
- Vol. 32 (6) , 1077-1083
Determination of fluvoxamine maleate in human urine and human serum using alkaline KMnO4–rhodamine B chemiluminescence
The flow‐injection chemiluminescence (FI‐CL) behavior of a gold nanocluster (Au NC)–enhanced rhodamine B–KMnO4 system was studied under alkaline conditions for the first time. In the present study, the as‐prepared bovine serum albumin‐stabilized Au NCs showed excellent stability and reproducibility. The addition of trace levels of fluvoxamine maleate (Flu) led to an obvious decline in CL intensity in the rhodamine B–KMnO4–Au NCs system, which could be used for quantitative detection of Flu. Under optimized conditions, the proposed CL system exhibited a favorable analytical performance for Flu determination in the range 2 to 100 μg ml−1. The detection limit for Flu measurement was 0.021 μg ml−1. Moreover, this newly developed system revealed outstanding selectivity for Flu detection when compared with a multitude of other species, such as the usual ions, uric acid and a section of hydroxy compounds. Additionally, CL spectra, UV–visible spectroscopes and fluorescence spectra were measured in order to determine the possible reaction mechanism. This approach could be used to detect Flu in human urine and human serum samples with the desired recoveries and could have promising application under physiological conditions.
- 29 March 2017
- Published by Wiley in Luminescence
- Vol. 32 (6) , 1077-1083
Determination of fluvoxamine maleate in human urine and human serum using alkaline KMnO4–rhodamine B chemiluminescence
The flow‐injection chemiluminescence (FI‐CL) behavior of a gold nanocluster (Au NC)–enhanced rhodamine B–KMnO4 system was studied under alkaline conditions for the first time. In the present study, the as‐prepared bovine serum albumin‐stabilized Au NCs showed excellent stability and reproducibility. The addition of trace levels of fluvoxamine maleate (Flu) led to an obvious decline in CL intensity in the rhodamine B–KMnO4–Au NCs system, which could be used for quantitative detection of Flu. Under optimized conditions, the proposed CL system exhibited a favorable analytical performance for Flu determination in the range 2 to 100 μg ml−1. The detection limit for Flu measurement was 0.021 μg ml−1. Moreover, this newly developed system revealed outstanding selectivity for Flu detection when compared with a multitude of other species, such as the usual ions, uric acid and a section of hydroxy compounds. Additionally, CL spectra, UV–visible spectroscopes and fluorescence spectra were measured in order to determine the possible reaction mechanism. This approach could be used to detect Flu in human urine and human serum samples with the desired recoveries and could have promising application under physiological conditions.