Methods, devices, and systems using acoustic ejection for depositing fluid droplets on a sample surface for analysis
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United States of America Patent
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Feb 15, 2005
Issued Date -
N/A
app pub date -
Mar 3, 2003
filing date -
Feb 14, 2001
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Expired
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Abstract
Provided is a method for preparing a sample surface for analysis that involves placing a sample surface in droplet-receiving relationship to a reservoir containing an analysis-enhancing fluid. Typically, the analysis-enhancing fluid is comprised of a mass spectrometry matrix material and a carrier fluid, and the carrier fluid is comprised of a low volatility solvent. A droplet of the analysis-enhancing fluid from the reservoir such that the droplet is deposited on the sample surface at a designated site. Such ejection is typically, but not necessarily carried out through the application of focused acoustic energy. Then, the sample is subjected to conditions sufficient to allow the analysis-enhancing fluid to interact with the sample surface to render the sample surface suitable for analysis. Optionally, the sample is analyzed at the selected site. Also provided are systems and devices for preparing a sample surface for analysis.
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