Liquid-absorption preconcentrator sampling instrument
Abstract
A system for detecting trace concentrations of an analyte in air and includes a preconcentrator for the analyte and an analyte detector. The preconcentrator includes an elongated tubular container in which is disposed a wettable material extending substantially the entire length of the container. One end of the wettable material is continuously wetted with an analyte-sorbing liquid, which flows to the other end of the container. Sample air is flowed through the container in contact with the wetted material for trapping and preconcentrating the traces of analyte in the sorbing liquid, which is then collected at the other end of the container and discharged to the detector. The wetted material may be a wick comprising a bundle of fibers, one end of which is immersed in a reservoir of the analyte-sorbing liquid, or may be a liner disposed on the inner surface of the container, with the sorbing liquid being centrifugally dispersed onto the liner at one end thereof. The container is preferably vertically oriented so that gravity effects the liquid flow.
- Inventors:
-
- Hinsdale, IL
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 867639
- Patent Number(s):
- 4977095
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- liquid-absorption; preconcentrator; sampling; instrument; detecting; trace; concentrations; analyte; air; detector; elongated; tubular; container; disposed; wettable; material; extending; substantially; entire; length; continuously; wetted; analyte-sorbing; liquid; flows; sample; flowed; contact; trapping; preconcentrating; traces; sorbing; collected; discharged; wick; comprising; bundle; fibers; immersed; reservoir; liner; inner; surface; centrifugally; dispersed; preferably; vertically; oriented; gravity; effects; flow; wettable material; elongated tubular; liner disposed; analyte-sorbing liquid; sorbing liquid; trace concentrations; liquid flow; entire length; vertically oriented; inner surface; tubular container; analyte detector; preferably vertically; preconcentrator sampling; wetted material; detecting trace; sample air; sampling instrument; continuously wetted; extending substantially; trace concentration; absorption preconcentrator; liquid-absorption preconcentrator; /436/73/95/422/
Citation Formats
Zaromb, Solomon. Liquid-absorption preconcentrator sampling instrument. United States: N. p., 1990.
Web.
Zaromb, Solomon. Liquid-absorption preconcentrator sampling instrument. United States.
Zaromb, Solomon. Mon .
"Liquid-absorption preconcentrator sampling instrument". United States. https://www.osti.gov/servlets/purl/867639.
@article{osti_867639,
title = {Liquid-absorption preconcentrator sampling instrument},
author = {Zaromb, Solomon},
abstractNote = {A system for detecting trace concentrations of an analyte in air and includes a preconcentrator for the analyte and an analyte detector. The preconcentrator includes an elongated tubular container in which is disposed a wettable material extending substantially the entire length of the container. One end of the wettable material is continuously wetted with an analyte-sorbing liquid, which flows to the other end of the container. Sample air is flowed through the container in contact with the wetted material for trapping and preconcentrating the traces of analyte in the sorbing liquid, which is then collected at the other end of the container and discharged to the detector. The wetted material may be a wick comprising a bundle of fibers, one end of which is immersed in a reservoir of the analyte-sorbing liquid, or may be a liner disposed on the inner surface of the container, with the sorbing liquid being centrifugally dispersed onto the liner at one end thereof. The container is preferably vertically oriented so that gravity effects the liquid flow.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1990},
month = {Mon Jan 01 00:00:00 EST 1990}
}