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Title: Thin layer chromatography residue applicator sampler

Abstract

A thin layer chromatograph residue applicator sampler. The residue applicator sampler provides for rapid analysis of samples containing high explosives, chemical warfare, and other analyses of interest under field conditions. This satisfied the need for a field-deployable, small, hand-held, all-in-one device for efficient sampling, sample dissolution, and sample application to an analytical technique. The residue applicator sampler includes a sampling sponge that is resistant to most chemicals and is fastened via a plastic handle in a hermetically sealed tube containing a known amount of solvent. Upon use, the wetted sponge is removed from the sealed tube and used as a swiping device across an environmental sample. The sponge is then replaced in the hermetically sealed tube where the sample remains contained and dissolved in the solvent. A small pipette tip is removably contained in the hermetically sealed tube. The sponge is removed and placed into the pipette tip where a squeezing-out of the dissolved sample from the sponge into the pipette tip results in a droplet captured in a vial for later instrumental analysis, or applied directly to a thin layer chromatography plate for immediate analysis.

Inventors:
 [1];  [2];  [3];  [4]
  1. Danville, CA
  2. Modesto, CA
  3. San Ramon, CA
  4. Livermore, CA
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
913100
Patent Number(s):
7,247,273
Application Number:
10/229,523
Assignee:
The Regents of the University of California (Oakland, CA) OAK
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Nunes, Peter J, Kelly, Fredrick R, Haas, Jeffrey S, and Andresen, Brian D. Thin layer chromatography residue applicator sampler. United States: N. p., 2007. Web.
Nunes, Peter J, Kelly, Fredrick R, Haas, Jeffrey S, & Andresen, Brian D. Thin layer chromatography residue applicator sampler. United States.
Nunes, Peter J, Kelly, Fredrick R, Haas, Jeffrey S, and Andresen, Brian D. Tue . "Thin layer chromatography residue applicator sampler". United States. https://www.osti.gov/servlets/purl/913100.
@article{osti_913100,
title = {Thin layer chromatography residue applicator sampler},
author = {Nunes, Peter J and Kelly, Fredrick R and Haas, Jeffrey S and Andresen, Brian D},
abstractNote = {A thin layer chromatograph residue applicator sampler. The residue applicator sampler provides for rapid analysis of samples containing high explosives, chemical warfare, and other analyses of interest under field conditions. This satisfied the need for a field-deployable, small, hand-held, all-in-one device for efficient sampling, sample dissolution, and sample application to an analytical technique. The residue applicator sampler includes a sampling sponge that is resistant to most chemicals and is fastened via a plastic handle in a hermetically sealed tube containing a known amount of solvent. Upon use, the wetted sponge is removed from the sealed tube and used as a swiping device across an environmental sample. The sponge is then replaced in the hermetically sealed tube where the sample remains contained and dissolved in the solvent. A small pipette tip is removably contained in the hermetically sealed tube. The sponge is removed and placed into the pipette tip where a squeezing-out of the dissolved sample from the sponge into the pipette tip results in a droplet captured in a vial for later instrumental analysis, or applied directly to a thin layer chromatography plate for immediate analysis.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {7}
}

Patent:

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