Finnigan Corporation

Finnigan Mat Gmbh

Michael Karas

Franz Hillenkamp

Ulrich Giessmann

Ulrich-Peter Giessmann

Detector device for analyzing ions of high mass using a time-of-flight (TOF) analytical method, consisting of a mass spectrometer 1, accelerating electrodes 2 and a magnetic field and/or electric field, all of which serves to deflect secondary ions 5 emerging from a first conversion dynode 8, so that the secondary ions impinge according to polarity on a second 7 and third 7' conversion dynode.

Device and method for analyzing ions of high mass

The invention relates to a process for the laser desorption of analyte molecular ions, especially of biomolecules, from a specimen. The object of the invention is to improve a process of this type in such a way that intact desorption of biomolecules, preferably of large molecular mass, is also possible with a laser. This is achieved by using laser light of a wavelength of about 300 nm or greater than 300 nm and using a matrix which is able to absorb in the selected wavelength range.

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Munster, Germany

Michael Karas