We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
A 'turn-on' fluorescence assay for lead(II) based on the suppression of the surface energy transfer between acridine orange and gold nanoparticles.
- Authors
Wang, Xiao-Feng; Xiang, Li-Ping; Wang, Yong-Sheng; Xue, Jin-Hua; Zhu, Yu-Feng; Huang, Yan-Qin; Chen, Si-Han; Tang, Xian
- Abstract
The authors describe a strategy for fluorometric determination of lead(II) that is based on the suppression of the surface energy transfer that occurs between acridine orange and gold nanoparticles (AuNPs). As a result, the fluorescence of the system is recovered. Under optimized conditions, the enhancement of fluorescence intensity is related to the concentration of lead(II) in the 44 nM to 4.8 μM range, with a detection limit of 13 nM. The relative standard deviations for 11 determinations at concentrations of 0.386 μM, 1.93 μM and 2.89 μM are 1.02 %, 1.06 % and 1.75 %, respectively. This result suggests that the method can potentially be used to monitor the level of lead(II) in environmental samples. [Figure not available: see fulltext.]
- Subjects
FLUORESCENCE; LEAD compounds; SURFACE energy; ENERGY transfer; ACRIDINE orange; GOLD nanoparticles
- Publication
Microchimica Acta, 2016, Vol 183, Issue 4, p1333
- ISSN
0026-3672
- Publication type
Article
- DOI
10.1007/s00604-015-1738-7