Back to Search
Start Over
A Highly Selective Luminescent Sensor for Detecting Mercuric Ions in Water.
- Source :
- Australian Journal of Chemistry; Dec2009, Vol. 62 Issue 12, p1593-1599, 7p
- Publication Year :
- 2009
-
Abstract
- A chemoluminescent sensor utilizing the substrate 2,6-pyridinedicarboxaldehydebis(o-hydroxyphenylimine) (S1) was developed for low-concentration detection of mercuric ions in aqueous solutions. The sensor selectively detects mercury in the presence of sodium, calcium, magnesium, and iron ions. A strong binding was observed between the mercuric ions and the substrate at a pH range of 6.5–7.5, which makes the substrate a distinctive luminescence sensor for detecting mercury at ambient conditions. The sensor shows a linear response towards Hg2+in the concentration range 5.0 × 10-5to 2.5 × 10-8M with a limit of detection of 5.0 × 10-8M. The sensor can also detect zinc ions at a pH of 10 or higher. The results indicate that this sensor has a promising future for the detection of mercury in real environmental water samples. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00049425
- Volume :
- 62
- Issue :
- 12
- Database :
- Complementary Index
- Journal :
- Australian Journal of Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 47719604
- Full Text :
- https://doi.org/10.1071/CH09048