An Optode Sensor for Cu2+ with High Selectivity Based on Porphyrin Derivative Appended with Bipyridine View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2007-05-10

AUTHORS

Hong-Yuan Luo, Xiao-Bing Zhang, Jian-Hui Jiang, Chun-Yan Li, Jing Peng, Guo-Li Shen, Ru-Qin Yu

ABSTRACT

A porphyrin derivative (fluorophore) appended with bipyridine (ionophore) has been applied for preparation of a Cu2+- sensitive optical chemical sensor, which is based on fluorescence quenching of porphyrin derivative entrapped in a poly(vinyl chloride) membrane by the energy transfer process. The sensor exhibits a linear response toward Cu2+ in the concentration range 2.0 × 10-8- 1.0 × 10-5 M, with a working pH range from 6.0 to 8.0 and a high selectivity. The detection limit is 5 × 10-9 M. The response time for Cu2+ is less than 5 min with concentrations lower than 5 × 10-6 M. The optode can be regenerated using 0.3 M EDTA (pH 9) and acetate buffer solution. The effect of the composition of the sensor membrane was studied, and the experimental conditions were optimized. The sensor has been used for direct determination of Cu2+ in water samples with satisfied results. More... »

PAGES

551-555

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.2116/analsci.23.551

DOI

http://dx.doi.org/10.2116/analsci.23.551

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1041025161

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/17495400


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187 schema:name State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry & Chemical Engineering, Hunan University, 410082, Changsha, P. R. China
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