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Title: Method for detecting organic contaminants in water supplies

Abstract

A system for detecting organic contaminants in water supplies. A sampling unit is employed which includes a housing having at least one opening therein and a tubular member positioned within the housing having a central passageway surrounded by a side wall. The side wall is made of a composition designed to absorb the contaminants. In use, the sampling unit is immersed in a water supply. The water supply contacts the tubular member through the opening in the housing, with any contaminants being absorbed into the side wall of the tubular member. A carrier gas is then passed through the central passageway of the tubular member. The contaminants will diffuse out of the side wall and into the central passageway where they will subsequently combine with the carrier gas, thereby yielding a gaseous product. The gaseous product is then analyzed to determine the amount and type of contaminants therein.

Inventors:
 [1];  [2];  [3]
  1. Shelley, ID
  2. Idaho Falls, ID
  3. White Bear Lake, MN
Issue Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
OSTI Identifier:
872471
Patent Number(s):
5942440
Assignee:
Lockheed Martin Idaho Technologies Company (Idaho Falls, ID)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC07-94ID13223
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; detecting; organic; contaminants; water; supplies; sampling; unit; employed; housing; therein; tubular; positioned; central; passageway; surrounded; wall; composition; designed; absorb; immersed; supply; contacts; absorbed; carrier; gas; passed; diffuse; subsequently; combine; yielding; gaseous; product; analyzed; determine; amount; type; central passage; central passageway; organic contaminant; carrier gas; gaseous product; organic contaminants; water supply; water supplies; detecting organic; /436/73/

Citation Formats

Dooley, Kirk J, Barrie, Scott L, and Buttner, William J. Method for detecting organic contaminants in water supplies. United States: N. p., 1999. Web.
Dooley, Kirk J, Barrie, Scott L, & Buttner, William J. Method for detecting organic contaminants in water supplies. United States.
Dooley, Kirk J, Barrie, Scott L, and Buttner, William J. Fri . "Method for detecting organic contaminants in water supplies". United States. https://www.osti.gov/servlets/purl/872471.
@article{osti_872471,
title = {Method for detecting organic contaminants in water supplies},
author = {Dooley, Kirk J and Barrie, Scott L and Buttner, William J},
abstractNote = {A system for detecting organic contaminants in water supplies. A sampling unit is employed which includes a housing having at least one opening therein and a tubular member positioned within the housing having a central passageway surrounded by a side wall. The side wall is made of a composition designed to absorb the contaminants. In use, the sampling unit is immersed in a water supply. The water supply contacts the tubular member through the opening in the housing, with any contaminants being absorbed into the side wall of the tubular member. A carrier gas is then passed through the central passageway of the tubular member. The contaminants will diffuse out of the side wall and into the central passageway where they will subsequently combine with the carrier gas, thereby yielding a gaseous product. The gaseous product is then analyzed to determine the amount and type of contaminants therein.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

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Works referenced in this record:

Diffusion Samplers as an Inexpensive Approach to Monitoring VOCs in Ground Water
journal, August 1997