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Title: High throughput liquid absorption preconcentrator sampling instrument

Abstract

A system for detecting trace concentrations of an analyte in air includes a preconcentrator for the analyte and an analyte detector. The preconcentrator includes an elongated tubular container comprising a wettable material. The wettable material is continuously wetted with an analyte-sorbing liquid which flows from one part of the container to a lower end. Sampled air flows through the container in contact with the wetted material with a swirling motion which results in efficient transfer of analyte vapors or aerosol particles to the sorbing liquid and preconcentration of traces of analyte in the liquid. The preconcentrated traces of analyte may be either detected within the container or removed therefrom for injection into a separate detection means or for subsequent analysis.

Inventors:
 [1];  [2]
  1. Hinsdale, IL
  2. Hattiesburg, MS
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
OSTI Identifier:
868604
Patent Number(s):
5173264
Assignee:
United States of America as represented by United States (Washington, DC)
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:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
throughput; liquid; absorption; preconcentrator; sampling; instrument; detecting; trace; concentrations; analyte; air; detector; elongated; tubular; container; comprising; wettable; material; continuously; wetted; analyte-sorbing; flows; sampled; contact; swirling; motion; results; efficient; transfer; vapors; aerosol; particles; sorbing; preconcentration; traces; preconcentrated; detected; removed; therefrom; injection; separate; detection; means; subsequent; analysis; wettable material; elongated tubular; sampled air; analyte-sorbing liquid; aerosol particle; subsequent analysis; sorbing liquid; trace concentrations; air flows; detection means; aerosol particles; air flow; removed therefrom; separate detection; tubular container; analyte detector; preconcentrator sampling; wetted material; detecting trace; efficient transfer; sampling instrument; continuously wetted; container comprising; throughput liquid; trace concentration; absorption preconcentrator; /422/95/436/

Citation Formats

Zaromb, Solomon, and Bozen, Ralph M. High throughput liquid absorption preconcentrator sampling instrument. United States: N. p., 1992. Web.
Zaromb, Solomon, & Bozen, Ralph M. High throughput liquid absorption preconcentrator sampling instrument. United States.
Zaromb, Solomon, and Bozen, Ralph M. Wed . "High throughput liquid absorption preconcentrator sampling instrument". United States. https://www.osti.gov/servlets/purl/868604.
@article{osti_868604,
title = {High throughput liquid absorption preconcentrator sampling instrument},
author = {Zaromb, Solomon and Bozen, Ralph M},
abstractNote = {A system for detecting trace concentrations of an analyte in air includes a preconcentrator for the analyte and an analyte detector. The preconcentrator includes an elongated tubular container comprising a wettable material. The wettable material is continuously wetted with an analyte-sorbing liquid which flows from one part of the container to a lower end. Sampled air flows through the container in contact with the wetted material with a swirling motion which results in efficient transfer of analyte vapors or aerosol particles to the sorbing liquid and preconcentration of traces of analyte in the liquid. The preconcentrated traces of analyte may be either detected within the container or removed therefrom for injection into a separate detection means or for subsequent analysis.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}

Patent:

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