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Proceedings Paper

Miniaturized sequential injection analyzer for the monitoring and quantitation of chemical weapons degradation compounds
Author(s): Herbert L. Lancaster III; Timothy A. Postlethwaite; Peng Zhang; Richard Sorrells
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Paper Abstract

The ability to monitor and detect chemical warfare agents and their degradation compounds continues to be of utmost importance. Remote on-site field analysis of these compounds is also extremely important as it relates to treaty verification for the Chemical Weapons Convention, as well as the minimization and elimination of human exposure. A portable instrument has been developed and miniaturized that allows for the detection of these compounds in the field with better quantitative results and higher reproducibility than traditional field test kits. All sample and reagent manipulations are conducted in a completely automated fashion. Quantitative results may be determined colorimetrically using the molybdenum blue reaction for the final degradation product of phosphonic acid based chemical warfare agents with a detection limit of 0.05 ppm. The instrument is based on the flow analysis technique of sequential injection analysis (SIA). The benefits of this approach are that the method provides rapid response, high reproducibility of results, high sensitivity and minimal waste production.

Paper Details

Date Published: 24 June 2002
PDF: 12 pages
Proc. SPIE 4722, Chemical and Biological Sensing III, (24 June 2002); doi: 10.1117/12.472263
Show Author Affiliations
Herbert L. Lancaster III, Constellation Technology Corp. (United States)
Timothy A. Postlethwaite, Constellation Technology Corp. (United States)
Peng Zhang, Constellation Technology Corp. (United States)
Richard Sorrells, Constellation Technology Corp. (United States)

Published in SPIE Proceedings Vol. 4722:
Chemical and Biological Sensing III
Patrick J. Gardner, Editor(s)

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