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Lanthanide Recognition: Development of an Asymetric Gadolinium Microsensor Based on N-(2-pyridyl)-N'-(4-nitrophenyl)thiourea

The first asymmetric potentiometric Gd(III) microsensor is reported here. N-(2-Pyridyl)-N'-(4-nitrophenyl)thiourea (PyTu4NO2) was found to have a very selective and sensitive behavior toward Gd(III) ions, in comparison to other lanthanide ions as well as inner transition and representative metal ion... Full description

Journal Title: Analytical Letters Jan. 2008, Vol.41(16), pp.2972-2984
Main Author: Faridbod, Farnoush
Other Authors: Ganjali, Mohammad , Labbafi, Sharareh , Norouzi, Parviz
Format: Electronic Article Electronic Article
Language: English
Subjects:
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Quelle: © ProQuest LLC All rights reserved
ID: ISSN: 0003-2719 ; E-ISSN: 1532-236X ; DOI: 10.1080/00032710802440525
Link: http://search.proquest.com/docview/35462075/
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title: Lanthanide Recognition: Development of an Asymetric Gadolinium Microsensor Based on N-(2-pyridyl)-N'-(4-nitrophenyl)thiourea
format: Article
creator:
  • Faridbod, Farnoush
  • Ganjali, Mohammad
  • Labbafi, Sharareh
  • Norouzi, Parviz
subjects:
  • Lanthanides
  • Sensors
  • Microelectrodes
  • Asymmetry
  • Gadolinium
  • Recognition
  • Construction Materials
  • Response Time
  • Materials Selection
  • Detection
  • Ph
  • Metal Ions
  • Miscellaneous Sciences (So)
  • Article
ispartof: Analytical Letters, Jan. 2008, Vol.41(16), pp.2972-2984
description: The first asymmetric potentiometric Gd(III) microsensor is reported here. N-(2-Pyridyl)-N'-(4-nitrophenyl)thiourea (PyTu4NO2) was found to have a very selective and sensitive behavior toward Gd(III) ions, in comparison to other lanthanide ions as well as inner transition and representative metal ions and hence was used as a sensing material in the construction of a Gd(III) microelectrode. The Gd(III) sensor exhibits a Nernstian slope of 17.46+/-0.3mV per decade over the concentration range of 1.0t10-8 to 1.0t10-3 M and a detection limit of 3.0t10-9 M of Gd(III) ions. The potentiometric response of the sensor is independent of the solution pH in the range of 4.0-9.0. It manifests advantages of low detection limit and fast response time (10-15s).
language: eng
source: © ProQuest LLC All rights reserved
identifier: ISSN: 0003-2719 ; E-ISSN: 1532-236X ; DOI: 10.1080/00032710802440525
fulltext: fulltext
issn:
  • 00032719
  • 0003-2719
  • 1532236X
  • 1532-236X
url: Link


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titleLanthanide Recognition: Development of an Asymetric Gadolinium Microsensor Based on N-(2-pyridyl)-N'-(4-nitrophenyl)thiourea
creatorFaridbod, Farnoush ; Ganjali, Mohammad ; Labbafi, Sharareh ; Norouzi, Parviz
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subjectLanthanides ; Sensors ; Microelectrodes ; Asymmetry ; Gadolinium ; Recognition ; Construction Materials ; Response Time ; Materials Selection ; Detection ; Ph ; Metal Ions ; Miscellaneous Sciences (So) ; Article
descriptionThe first asymmetric potentiometric Gd(III) microsensor is reported here. N-(2-Pyridyl)-N'-(4-nitrophenyl)thiourea (PyTu4NO2) was found to have a very selective and sensitive behavior toward Gd(III) ions, in comparison to other lanthanide ions as well as inner transition and representative metal ions and hence was used as a sensing material in the construction of a Gd(III) microelectrode. The Gd(III) sensor exhibits a Nernstian slope of 17.46+/-0.3mV per decade over the concentration range of 1.0t10-8 to 1.0t10-3 M and a detection limit of 3.0t10-9 M of Gd(III) ions. The potentiometric response of the sensor is independent of the solution pH in the range of 4.0-9.0. It manifests advantages of low detection limit and fast response time (10-15s).
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descriptionThe first asymmetric potentiometric Gd(III) microsensor is reported here. N-(2-Pyridyl)-N'-(4-nitrophenyl)thiourea (PyTu4NO2) was found to have a very selective and sensitive behavior toward Gd(III) ions, in comparison to other lanthanide ions as well as inner transition and representative metal ions and hence was used as a sensing material in the construction of a Gd(III) microelectrode. The Gd(III) sensor exhibits a Nernstian slope of 17.46+/-0.3mV per decade over the concentration range of 1.0t10-8 to 1.0t10-3 M and a detection limit of 3.0t10-9 M of Gd(III) ions. The potentiometric response of the sensor is independent of the solution pH in the range of 4.0-9.0. It manifests advantages of low detection limit and fast response time (10-15s).
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abstractThe first asymmetric potentiometric Gd(III) microsensor is reported here. N-(2-Pyridyl)-N'-(4-nitrophenyl)thiourea (PyTu4NO2) was found to have a very selective and sensitive behavior toward Gd(III) ions, in comparison to other lanthanide ions as well as inner transition and representative metal ions and hence was used as a sensing material in the construction of a Gd(III) microelectrode. The Gd(III) sensor exhibits a Nernstian slope of 17.46+/-0.3mV per decade over the concentration range of 1.0t10-8 to 1.0t10-3 M and a detection limit of 3.0t10-9 M of Gd(III) ions. The potentiometric response of the sensor is independent of the solution pH in the range of 4.0-9.0. It manifests advantages of low detection limit and fast response time (10-15s).
doi10.1080/00032710802440525
urlhttp://search.proquest.com/docview/35462075/
date2008-01-01