The Synthesis of a New Thiophene-Derivative Schiff's Base and Its Use in Preparation of Copper-Ion Selective Electrodes

Autor:	Hossein Aghabozorg, Tahereh Poursaberi, Maryam Kargar-Razi, Shohreh Rouhani, Mojtaba Shamsipur, Mohammad Reza Ganjali, Abolghasem Moghimi, Mohammad Yousefi, Leila Hajiaghababaei
Rok vydání:	2001
Předmět:	Detection limit Metal ions in aqueous solution Inorganic chemistry Potentiometric titration chemistry.chemical_element Copper Analytical Chemistry Ion chemistry.chemical_compound Quinhydrone electrode chemistry Electrode Electrochemistry Thiophene
Zdroj:	Scopus-Elsevier
ISSN:	1521-4109 1040-0397
DOI:	10.1002/1521-4109(200112)13:18<1513::aid-elan1513>3.0.co;2-x
Popis:	A highly selective and sensitive PVC-membrane electrode for Cu(II) ion was developed by using a new thiophene-derivative Schiff’s base. The electrode exhibits a Nernstian slope of 29.3 � 0.7 mV per decade at 25 � C over a very wide concentration range (1.0610 � 1 – 6.0610 � 8 M) with a detection limit of 2.0610 � 8 M (1.28 ng/mL). The ion selectivity of this electrode for Cu 2þ was greater than 3.0610 3 times over various metal ions. It was successfully applied to the determination of trace amounts of copper in Iranian black tea, and as indicator electrode, in potentiometric titration of copper ion.
Databáze:	OpenAIRE
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