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Title: Method and Apparatus for Concentrating Vapors for Analysis

Abstract

An apparatus and method are disclosed for pre-concentrating gaseous vapors for analysis. The invention finds application in conjunction with, e.g., analytical instruments where low detection limits for gaseous vapors are desirable. Vapors sorbed and concentrated within the bed of the apparatus can be thermally desorbed achieving at least partial separation of vapor mixtures. The apparatus is suitable, e.g., for preconcentration 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 for direct sampling and analysis systems. Features are particularly useful for continuous unattended monitoring applications.

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:
953670
Patent Number(s):
7430928
Application Number:
11/350,716
Assignee:
Battelle Memorial Insititute (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

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., 2008. 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/953670.
@article{osti_953670,
title = {Method and Apparatus for Concentrating Vapors for Analysis},
author = {Grate, Jay W and Baldwin, David L and Anheier, Jr., Norman C.},
abstractNote = {An apparatus and method are disclosed for pre-concentrating gaseous vapors for analysis. The invention finds application in conjunction with, e.g., analytical instruments where low detection limits for gaseous vapors are desirable. Vapors sorbed and concentrated within the bed of the apparatus can be thermally desorbed achieving at least partial separation of vapor mixtures. The apparatus is suitable, e.g., for preconcentration 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 for direct sampling and analysis systems. Features are particularly useful for continuous unattended monitoring applications.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {10}
}

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