Journal
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
Volume 397, Issue 8, Pages 3589-3593Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-010-3900-8
Keywords
CdTe quantum dots; V(V) ions; Fluorescence; Quenching; Water
Funding
- Natural Science Foundation of Guangxi Autonomous Region, China [0728218, 0679005]
- Innovation Project of Guangxi Graduate Education [2009105960703 M17]
- Guilin University of Technology
Ask authors/readers for more resources
CdTe quantum dots (QDs) were modified with thioglycolic acid (TGA) and synthesized in aqueous medium. The optimum fluorescence intensity was found to be at pH 6.24 with a CdTe QDs concentration of 4.96x10(-7) mol L-1. The quenched fluorescence intensity of CdTe QDs is linearly proportional to V(V) concentration from 10 to 200 ng mL(-1) with correlation coefficient R=0.9985. The limit of detection for V(V) was 2.07 ng mL(-1). The proposed method was successfully applied to the analysis of trace amounts of V(V) in water samples with recovery of 96.5-101.8%, and the results were in good agreement with those of electrothermal atomic absorption spectrometry.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available