Method for loading sample supports for mass spectrometers
First Claim
1. Method for rapidly loading of a large number of solved samples for mass spectrometric analysis from microtiter plates onto a sample support plate, comprising the steps(a) using a sample support plate in the size of a microtiter plate, and(b) transferring amounts of sample solution from microtiter plate wells to the sample support plate simultaneously for a large subset of the samples of the microtiter plate, using a multiple pipette.
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Abstract
A method for rapid loading of large sample supports with a very large number of analyte samples for mass spectrometric analysis using the ionization method of matrix-assisted desorption by laser bombardment (MALDI). The method consists of using microtiter plates already introduced in biochemistry and molecular genetics for parallel processing of a large number of dissolved samples and a multiple pipette unit for simultaneous transfer of sample solution quantities from all reaction wells on a microtiter plate to the sample support, the sample support having at least the same size. By repeated loading with samples from other microtiter plates, spaced between the samples already applied, a very high density of samples can be achieved. Some of these samples can be reserved for a mass spectrometric determination of the sample positioning on the sample support, and the positions of the other samples can then be interpolated.
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Citations
15 Claims
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1. Method for rapidly loading of a large number of solved samples for mass spectrometric analysis from microtiter plates onto a sample support plate, comprising the steps
(a) using a sample support plate in the size of a microtiter plate, and (b) transferring amounts of sample solution from microtiter plate wells to the sample support plate simultaneously for a large subset of the samples of the microtiter plate, using a multiple pipette.
Specification