Global to push GA events into
skip to main content

Title: Use of a fiber optic probe for organic species determination

A fiber optic probe for remotely detecting the presence and concentration organic species in aqueous solutions. The probe includes a cylindrical housing with an organic species indicator, preferably diaminonaphthyl sulfonic acid adsorbed in a silica gel (DANS-modified gel), contained in the probe's distal end. The probe admits aqueous solutions to the probe interior for mixing within the DANS-modified gel. An optical fiber transmits light through the DANS-modified gel while the indicator reacts with organic species present in the solution, thereby shifting the location of the fluorescent peak. The altered light is reflected to a receiving fiber that carries the light to a spectrophotometer or other analysis device.
  1. (Augusta, GA)
Issue Date:
OSTI Identifier:
United States of America as represented by Department of Energy (Washington, DC) SRS
Patent Number(s):
US 5583051
Contract Number:
Research Org:
Country of Publication:
United States
fiber; optic; probe; organic; species; determination; remotely; detecting; presence; concentration; aqueous; solutions; cylindrical; housing; indicator; preferably; diaminonaphthyl; sulfonic; acid; adsorbed; silica; dans-modified; contained; distal; admits; interior; mixing; optical; transmits; light; reacts; solution; shifting; location; fluorescent; peak; altered; reflected; receiving; carries; spectrophotometer; analysis; device; receiving fiber; cylindrical housing; sulfonic acid; fiber optic; aqueous solution; optical fiber; aqueous solutions; optic probe; organic species; remotely detect; analysis device; /436/422/