Fiber Optic-Fluorescence Sensors for Remote Detection of Chemical Species in Seawater

Abstract

Development of fiber optic based chemical sensors that use fluorogenic indicators for measurements in seawater is discussed. A sensor configuration of avoiding reversibility problems in which the indicator is constantly renewed at the probe tip by forcing it through an ultrafiltration membrane is described. The sensor is shown to respond reversibly on time scales of 1-sec to changes in analyte concentrations. Methods for increasing the specificity in complex matrices are discussed. Keywords: Fluorescence spectrometry; Fibers optics; Seawater analyses. Reprints. (JHD)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1989
Accession Number
ADA213951

Entities

People

  • E. J. Stromvall
  • S. H. Lieberman
  • S. M. Inman

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Analyzers
  • Arc Lamps
  • Chemical Detectors
  • Chemistry
  • Coordination Complexes
  • Detection
  • Detectors
  • Dye Lasers
  • Emission Spectra
  • Fibers
  • Light Sources
  • Measurement
  • Oceans
  • Remote Sensing
  • Security
  • Spectrometry
  • Spectroscopy

Readers

  • Analytical Chemistry
  • Optical Physics and Photonics.
  • Systems Analysis and Design