Gottfried Wilhelm Leibniz Universitat Hannover

Gottfried Wilhelm Leibniz Universitaet Hannover

Alexander Bohnhorst

Stefan Zimmermann

Ansgar Kirk

Martin Lippmann

The invention relates to an ion transport device which is designed to transport ions by means of an electric field. The ion transport device has an ion transport channel in which an ion transport chamber is formed. In order to generate the electric field, the ion transport device has a plurality of field generating electrodes which are arranged one behind the other along the length of the ion transport channel in order to move ions through the ion transport chamber in a transport direction. The invention additionally relates to an ion mobility spectrometer and to a mass spectrometer.

Ion transport device, ion mobility spectrometer, and mass spectrometer

The invention relates to an ion mobility spectrometer which has at least a first drift chamber and a first switchable ion gate for the controlled transfer of ions into the first drift chamber, wherein:&#x2014;the first ion gate is designed as a field switching ion gate having at least a first counter electrode and a first injection electrode; wherein&#x2014;a first ionization chamber is formed between the first counter electrode and the first injection electrode, into which first ionization chamber ions to be analyzed by ion mobility spectrometry can be fed from an ionization source. The invention also relates to an ion mobility spectrometer which has at least a first drift chamber and a first switchable ion gate for the controlled transfer of ions into the first drift chamber and a second drift chamber separated from the first drift chamber and a second switchable ion gate for the controlled transfer of ions into the second drift chamber. The invention also relates to a method for analyzing samples by ion mobility spectrometry by means of an ion mobility spectrometer, e.g. an ion mobility spectrometer of the type mentioned above, wherein by means of an ionization source ions to be analyzed arc produced from the sample and are provided in an ionization chamber of the ion mobility spectrometer.

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Hannover, Germany

Alexander Bohnhorst