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

Seung Tae Yang, Leonidas G Bachas

Research output: Contribution to journalArticle

18 Citations (Scopus)

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 languageEnglish (US)
Pages (from-to)963-968
Number of pages6
JournalTalanta
Volume41
Issue number6
DOIs
StatePublished - 1994
Externally publishedYes

Fingerprint

Fiber optic chemical sensors
Nitrites
Porphyrins
Sensors
Optical Fibers
Cobalt
ITO glass
Glass
Limit of Detection
Fiber optic sensors
Optical fibers

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy

Cite this

Fiber optic chemical sensor for nitrite based on an electropolymerized cobaltporphyrin film. / Yang, Seung Tae; Bachas, Leonidas G.

In: Talanta, Vol. 41, No. 6, 1994, p. 963-968.

Research output: Contribution to journalArticle

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