Share Email Print

Proceedings Paper

Flow optrodes for chemical analysis
Author(s): Richard J. Berman; Lloyd W. Burgess
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We have recently demonstrated the use of renewable reagent fiber optic sensors in a harsh sample matrix and with multiple reagent chemistries. Sodium hydroxide concentrations ranging from 1. 5-23. 0 (w/w) (0. 38-7. 2 M) were measured with a single probe chemistry. A sensor for free and total chlorine has been developed in which the reagents were sequentially switched to make the sensor responsive to either free chlorine (N 1 4-phenylene-diamine (DPD) + phosphate buffer) or both free and combined chlorine (DPD + phosphate buffer + KI). The detection limit of free chlorine was 0. 05 mgfL Cl2 at a reagent flow rate of4 j. tLtmin and covering a dynamic range of 0. 05-25 mg/L Cl2. Improvements in sensor fabrication techniques are currently being investigated in order to increase overall sensor functionality.

Paper Details

Date Published: 1 March 1991
PDF: 11 pages
Proc. SPIE 1368, Chemical, Biochemical, and Environmental Fiber Sensors II, (1 March 1991); doi: 10.1117/12.24776
Show Author Affiliations
Richard J. Berman, Univ. of Washington (United States)
Lloyd W. Burgess, Univ. of Washington (United States)

Published in SPIE Proceedings Vol. 1368:
Chemical, Biochemical, and Environmental Fiber Sensors II
Robert A. Lieberman; Marek T. Wlodarczyk, Editor(s)

© SPIE. Terms of Use
Back to Top