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Title: Development of a field-portable air monitor for Lewisite

The focus of this research is the development of a prototype field-portable ambient-air monitor for measuring trace levels of volatile organoarsenicals. Lewisite (dichloro[2-chlorovinyl]arsine) is a chemical warfare agent developed during World War I and stockpiled on a large scale by the former Soviet Union. A continuous air monitor for Lewisite at the eight-hour time-weighted-average concentration (3 {mu}g/m{sup 3}) is necessary to protect the safety and health of arms control treaty inspectors. Flow injection is used to integrate an air sampling device based on liquid-phase extraction with a flow-through detector based on potentiometric stripping analysis. We describe a method for the sampling and preconcentration of organoarsenicals from ambient air by using a gas permeation membrane sampler. The sampler is designed to selectively preconcentrate analyte that permeates a silicone rubber membrane into a caustic carrier stream. Instrument design is described for the sampling and detection methodologies.
Authors:
;  [1] ;  [2]
  1. Argonne National Lab., IL (United States)
  2. Argonne National Lab., IL (United States)|[FIA Solutions, Inc., Gig Harbor, WA (United States)
Publication Date:
OSTI Identifier:
208391
Report Number(s):
ANL/ER/CP--88021; CONF-960175--1
ON: DE96007056
DOE Contract Number:
W-31109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: 4. international on-site analysis meeting, Orlando, FL (United States), 21-24 Jan 1996; Other Information: PBD: [1996]
Research Org:
Argonne National Lab., IL (United States)
Sponsoring Org:
USDOE, Washington, DC (United States);Department of Defense, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 40 CHEMISTRY; CHEMICAL WARFARE AGENTS; MONITORING; FIELD TESTS; ORGANIC ARSENIC COMPOUNDS; DETECTION; TECHNOLOGY ASSESSMENT; AIR SAMPLERS; POTENTIOMETRY; GASEOUS DIFFUSION; PERMEABILITY; INJECTION; EXTRACTION