Fiber optic chemical sensor for nitrite based on an electropolymerized cobaltporphyrin film

Seung Tae Yang; Leonidas G. Bachas

doi:10.1016/0039-9140(94)E005S-J

Fiber optic chemical sensor for nitrite based on an electropolymerized cobaltporphyrin film

Seung Tae Yang, Leonidas G. Bachas

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

Fiber optic sensors for nitrite were prepared by first electrochemically depositing a film of cobalt(II) tetrakis(o-aminophenyl)porphyrin, [Co(o-NH₂)TPP], on the surface of indium(tin) oxide glass slides. Then, the slides with the immobilized porphyrin were positioned at the tip of an optical fiber bundle. The response of the sensors was based on a change in absorbance caused by the interaction between nitrite and the poly[Co(o-NH₂)TPP] film. The sensors had a detection limit of 6 × 10^-9M nitrite. The selectivity of the sensors was determined under both separate solutions and fixed interference conditions. The sensor had a long lifetime and was reversible.

Original language	English (US)
Pages (from-to)	963-968
Number of pages	6
Journal	Talanta
Volume	41
Issue number	6
DOIs	https://doi.org/10.1016/0039-9140(94)E005S-J
State	Published - Jun 1994
Externally published	Yes

ASJC Scopus subject areas

Analytical Chemistry

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@article{644414b80e584275ab214a2d432b8794,

title = "Fiber optic chemical sensor for nitrite based on an electropolymerized cobaltporphyrin film",

abstract = "Fiber optic sensors for nitrite were prepared by first electrochemically depositing a film of cobalt(II) tetrakis(o-aminophenyl)porphyrin, [Co(o-NH2)TPP], on the surface of indium(tin) oxide glass slides. Then, the slides with the immobilized porphyrin were positioned at the tip of an optical fiber bundle. The response of the sensors was based on a change in absorbance caused by the interaction between nitrite and the poly[Co(o-NH2)TPP] film. The sensors had a detection limit of 6 × 10-9M nitrite. The selectivity of the sensors was determined under both separate solutions and fixed interference conditions. The sensor had a long lifetime and was reversible.",

author = "Yang, {Seung Tae} and Bachas, {Leonidas G.}",

note = "Funding Information: Acknowledgement-Thiwso rk was supported by a grant from the National Science Foundation (EHR-9108764).",

year = "1994",

month = jun,

doi = "10.1016/0039-9140(94)E005S-J",

language = "English (US)",

volume = "41",

pages = "963--968",

journal = "Talanta",

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publisher = "Elsevier",

number = "6",

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TY - JOUR

T1 - Fiber optic chemical sensor for nitrite based on an electropolymerized cobaltporphyrin film

AU - Yang, Seung Tae

AU - Bachas, Leonidas G.

N1 - Funding Information: Acknowledgement-Thiwso rk was supported by a grant from the National Science Foundation (EHR-9108764).

PY - 1994/6

Y1 - 1994/6

N2 - Fiber optic sensors for nitrite were prepared by first electrochemically depositing a film of cobalt(II) tetrakis(o-aminophenyl)porphyrin, [Co(o-NH2)TPP], on the surface of indium(tin) oxide glass slides. Then, the slides with the immobilized porphyrin were positioned at the tip of an optical fiber bundle. The response of the sensors was based on a change in absorbance caused by the interaction between nitrite and the poly[Co(o-NH2)TPP] film. The sensors had a detection limit of 6 × 10-9M nitrite. The selectivity of the sensors was determined under both separate solutions and fixed interference conditions. The sensor had a long lifetime and was reversible.

AB - Fiber optic sensors for nitrite were prepared by first electrochemically depositing a film of cobalt(II) tetrakis(o-aminophenyl)porphyrin, [Co(o-NH2)TPP], on the surface of indium(tin) oxide glass slides. Then, the slides with the immobilized porphyrin were positioned at the tip of an optical fiber bundle. The response of the sensors was based on a change in absorbance caused by the interaction between nitrite and the poly[Co(o-NH2)TPP] film. The sensors had a detection limit of 6 × 10-9M nitrite. The selectivity of the sensors was determined under both separate solutions and fixed interference conditions. The sensor had a long lifetime and was reversible.

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