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An Artificial Tongue Fluorescent Sensor Array for Identification and Quantitation of Various Heavy Metal Ions
- Source :
- Analytical Chemistry. 86:8763-8769
- Publication Year :
- 2014
- Publisher :
- American Chemical Society (ACS), 2014.
-
Abstract
- Herein, a small-molecule fluorescent sensor array for rapid identification of seven heavy metal ions was designed and synthesized, with its sensing mechanism mimicking that of a tongue. The photoinduced electron transfer and intramolecular charge transfer mechanism result in combinatorial interactions between sensor array and heavy metal ions, which lead to diversified fluorescence wavelength shifts and emission intensity changes. Upon principle component analysis (PCA), this result renders clear identification of each heavy metal ion on a 3D spatial dispersion graph. Further exploration provides a concentration-dependent pattern, allowing both qualitative and quantitative measurements of heavy metal ions. On the basis of this information, a "safe-zone" concept was proposed, which provides rapid exclusion of versatile hazardous species from clean water samples based on toxicity characteristic leaching procedure standards. This type of small-molecule fluorescent sensor array could open a new avenue for multiple heavy metal ion detection and simplified water quality analysis.
- Subjects :
- Ions
Principal Component Analysis
Toxicity characteristic leaching procedure
Chemistry
Metal ions in aqueous solution
Analytical chemistry
Microarray Analysis
Fluorescence
Chemistry Techniques, Analytical
Photoinduced electron transfer
Analytical Chemistry
Metal
Wavelength
Sensor array
Metals, Heavy
visual_art
Intramolecular force
visual_art.visual_art_medium
Quantum Theory
Electronics
Fluorescent Dyes
Subjects
Details
- ISSN :
- 15206882 and 00032700
- Volume :
- 86
- Database :
- OpenAIRE
- Journal :
- Analytical Chemistry
- Accession number :
- edsair.doi.dedup.....c5549b518e78445591dfaeaf32eedb65