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Method for preparing samples for mass analysis by desorption from a frozen solution

  • US 4,920,264 A
  • Filed: 01/17/1989
  • Issued: 04/24/1990
  • Est. Priority Date: 01/17/1989
  • Status: Expired due to Term
First Claim
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1. A method useful for preparing a sample of nonvolatile molecules for mass spectral analysis which comprises:

  • (a) providing a solution containing one or more types of molecules to be analyzed dissolved in a solvent selected from the class consisting of water, 1-5 carbon organic solvents, and mixtures thereof to form a solution;

    (b) freezing said solution of dissolved molecules to form a frozen solution; and

    (c) exposing said frozen solution to a source of laser radiation energy to desorb molecules to be analyzed from the surface of said frozen solution.

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