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Title: Method and apparatus for concentrating vapors for analysis

Abstract

A pre-concentration device and a method are disclosed for concentrating gaseous vapors for analysis. Vapors sorbed and concentrated within the bed of the pre-concentration device are thermally desorbed, achieving at least partial separation of the vapor mixtures. The pre-concentration device is suitable, e.g., for pre-concentration and sample injection, and provides greater resolution of peaks for vapors within vapor mixtures, yielding detection levels that are 10-10,000 times better than direct sampling and analysis systems. Features are particularly useful for continuous unattended monitoring applications. The invention finds application in conjunction with, e.g., analytical instruments where low detection limits for gaseous vapors are desirable.

Inventors:
 [1];  [2];  [3]
  1. West Richland, WA
  2. Kennewick, WA
  3. (Richland, WA)
Issue Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1050875
Patent Number(s):
8191435
Application Number:
12/188,987
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC05-76RLO1830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Grate, Jay W, Baldwin, David L, and Anheier, Jr., Norman C. Method and apparatus for concentrating vapors for analysis. United States: N. p., 2012. Web.
Grate, Jay W, Baldwin, David L, & Anheier, Jr., Norman C. Method and apparatus for concentrating vapors for analysis. United States.
Grate, Jay W, Baldwin, David L, and Anheier, Jr., Norman C. Tue . "Method and apparatus for concentrating vapors for analysis". United States. https://www.osti.gov/servlets/purl/1050875.
@article{osti_1050875,
title = {Method and apparatus for concentrating vapors for analysis},
author = {Grate, Jay W and Baldwin, David L and Anheier, Jr., Norman C.},
abstractNote = {A pre-concentration device and a method are disclosed for concentrating gaseous vapors for analysis. Vapors sorbed and concentrated within the bed of the pre-concentration device are thermally desorbed, achieving at least partial separation of the vapor mixtures. The pre-concentration device is suitable, e.g., for pre-concentration and sample injection, and provides greater resolution of peaks for vapors within vapor mixtures, yielding detection levels that are 10-10,000 times better than direct sampling and analysis systems. Features are particularly useful for continuous unattended monitoring applications. The invention finds application in conjunction with, e.g., analytical instruments where low detection limits for gaseous vapors are desirable.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {6}
}

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