Sample Desorption/Ionization From Mesoporous Silica

Mesoporous silica is shown to be a sample holder for laser desorption/ionization of mass spectrometry.

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Sample Desorption/Ionization From Mesoporous Silica

Mesoporous silica is shown to be a sample holder for laser desorption/ionization of mass spectrometry. Supported mesoporous silica was prepared by coating an ethanolic silicate solution having a removable surfactant onto a substrate to produce a self-assembled, ordered, nanocomposite silica thin film. The surfactant was chosen to provide a desired pore size between about 1 nanometer diameter and 50 nanometers diameter. Removal of the surfactant resulted in a mesoporous silica thin film on the substrate. Samples having a molecular weight below 1000, such as C.sub.60 and tryptophan, were adsorbed onto and into the mesoporous silica thin film sample holder and analyzed using laser desorption/ionization mass spectrometry.

U.S. Patent No.: 6,958,480 (DOE S-102,379)

Patent Application Filing Date: June 25, 2004

Patent Issue Date: October 25, 2005

Licensing Status:

Available for Express Licensing(?). View terms and a sample license agreement.

For more information, contact Licensing@lanl.gov.


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