Selective optical sensing of copper(II) ions based on a novel cyclobutane-substituted Schiff base ligand embedded in polymer films

Selective optical sensing of copper(II) ions based on a novel cyclobutane-substituted Schiff base... The paper reports on the spectral photophysical characteristics of a novel fluorescent Schiff base ligand 4-(1-phenyl-1-methylcyclobutyl-3-yl)-2-(2-hydroxy-1-naphtylidene) thiazole (LH) in solvents of ethanol (EtOH), tetrahydrofuran (THF), and chloroform (TCM) and in solid matrix of polyvinyl chloride (PVC). The LH dye embedded in plasticized PVC matrix has been used for preparing an optical sensor for Cu(II). The response of the sensor is based on the fluorescence quenching of LH by Cu(II) ions. At pH 6.0, the proposed sensor displays a calibration response for Cu(II) over a wide concentration range of 5.0 × 10 −8 to 1.0 × 10 −4 M. The sensor is fully reversible within the dynamic range and the response time τ 90 is approximately 2.5 min under batch conditions. In addition to its high stability and reproducibility, the sensor shows a high selectivity towards Cu(II) ion with respect to common metal cations. The accuracy of the Cu(II) measurements using the proposed sensor was determined by analyzing standard reference materials of surface water and natural water. The sensor was also applied successfully for the determination of copper in green and black tea samples. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Sensors and Actuators B: Chemical Elsevier

Selective optical sensing of copper(II) ions based on a novel cyclobutane-substituted Schiff base ligand embedded in polymer films

Loading next page...
 
/lp/elsevier/selective-optical-sensing-of-copper-ii-ions-based-on-a-novel-OJK8qo6q4E
Publisher
Elsevier
Copyright
Copyright © 2008 Elsevier B.V.
ISSN
0925-4005
eISSN
1873-3077
D.O.I.
10.1016/j.snb.2008.05.041
Publisher site
See Article on Publisher Site

Abstract

The paper reports on the spectral photophysical characteristics of a novel fluorescent Schiff base ligand 4-(1-phenyl-1-methylcyclobutyl-3-yl)-2-(2-hydroxy-1-naphtylidene) thiazole (LH) in solvents of ethanol (EtOH), tetrahydrofuran (THF), and chloroform (TCM) and in solid matrix of polyvinyl chloride (PVC). The LH dye embedded in plasticized PVC matrix has been used for preparing an optical sensor for Cu(II). The response of the sensor is based on the fluorescence quenching of LH by Cu(II) ions. At pH 6.0, the proposed sensor displays a calibration response for Cu(II) over a wide concentration range of 5.0 × 10 −8 to 1.0 × 10 −4 M. The sensor is fully reversible within the dynamic range and the response time τ 90 is approximately 2.5 min under batch conditions. In addition to its high stability and reproducibility, the sensor shows a high selectivity towards Cu(II) ion with respect to common metal cations. The accuracy of the Cu(II) measurements using the proposed sensor was determined by analyzing standard reference materials of surface water and natural water. The sensor was also applied successfully for the determination of copper in green and black tea samples.

Journal

Sensors and Actuators B: ChemicalElsevier

Published: Sep 25, 2008

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off