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:
-
- Danville, CA
- Modesto, CA
- San Ramon, CA
- Livermore, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 913100
- Patent Number(s):
- 7247273
- Application Number:
- 10/229,523
- Assignee:
- The Regents of the University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01L - CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- 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}
}