Use of rare earth fluoride nano material in MALDI-MS

A technology of rare earth fluorides and nanomaterials, which is applied in the fields of analyzing materials, analyzing materials through electromagnetic means, measuring devices, etc., and achieves the effects of simple preparation methods, high yields, and strong versatility
CN101504387AInactive Publication Date: 2009-08-12NANJING UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANJING UNIV
Publication Date
2009-08-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a matrix material for MALDI, in particular to application of fluoride nanometer materials as a matrix in MALDI-MS. The fluoride nanometer materials are nano-particles with various shapes of ytterbium trifluoride, lanthanum trifluoride, cerium trifluoride, praseodymium trifluoride, neodymium trifluoride, samarium trifluoride, europium trifluoride, gadolinium trifluoride, terbium trifluoride, dysprosium trifluoride, holmium trifluoride, erbium trifluoride, thulium trifluoride, ytterbium trifluoride or lutetium trifluoride, or nano-particles of trifluorides compounded byany two or more of ytterbium, lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium or lutetium in any proportion. The invention takes rare earth fluoride nanometer materials as the matrix of the MALDI-MS for the first time, develops the matrix of the MALDI-MS with simple and convenient operation and strong universality, and realizes the quick and accurate analysis of the MALDI-MS.
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Description

technical field

[0001] The invention relates to a matrix material for matrix-assisted laser desorption ionization (MALDI), in particular to the application of a rare earth fluoride nanometer material as a MALDI matrix in MALDI-MS. Background technique

[0002] Matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF-MS) is a new type of soft ionization biological mass spectrometry developed in recent years. Its working principle is: when the laser irradiates the co-crystal mode formed by the sample and the matrix, the matrix absorbs energy from the laser and transmits it to the sample molecules, ionizing the sample molecules to form sample ions; the charged sample ions are accelerated under the action of an electric field Fly through the flight tube, arrive at the detector, and be detected according to the flight time of the detector, that is, the mass-to-charge ratio (M / Z) of the measured ion is proportional to the flight time of the ion, and ...

Claims

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