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Title: Flow injection trace gas analysis method for on-site determination of organoarsenicals

A method for real-time determination of the concentration of Lewisite in the ambient atmosphere, the method includes separating and collecting a Lewisite sample from the atmosphere in a collection chamber, converting the collected Lewisite to an arsenite ion solution sample, pumping the arsenite ion containing sample to an electrochemical detector connected to the collection chamber, and electrochemically detecting the converted arsenite ions in the sample, whereby the concentration of arsenite ions detected is proportional to the concentration of Lewisite in the atmosphere.
  1. (Orland Park, IL)
Issue Date:
OSTI Identifier:
United States of America as represented by United States (Washington, DC) ANL
Patent Number(s):
US 5641686
Contract Number:
Research Org:
Argonne National Laboratory (ANL), Argonne, IL
Country of Publication:
United States
flow; injection; trace; gas; analysis; method; on-site; determination; organoarsenicals; real-time; concentration; lewisite; ambient; atmosphere; separating; collecting; sample; collection; chamber; converting; collected; arsenite; solution; pumping; containing; electrochemical; detector; connected; electrochemically; detecting; converted; whereby; detected; proportional; gas analysis; flow injection; ambient atmosphere; collection chamber; analysis method; electrochemical detector; containing sample; trace gas; /436/204/422/