Patent · US Active

Method and apparatus for detecting and identifying gases by means of ion mobility spectrometry

US8866072B2 · kind B2 · utility

0Cited by

3References

8Claims

0Family size

Assignee

Airsense Analytics GmbH · DE

Inventors

Wolf Münchmeyer · Wittingen, DE
Bert Ungethüm · Schwerin, DE
Andreas Walte · Schwerin, DE

Key dates

Filing date	Aug 11, 2011
Grant date	Oct 21, 2014
Priority date	—
Expiry date	Aug 11, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG01N27/622
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a method for identifying gases, which are ionized and the drift times of the positive and negative product ions through drift spaces are measured and the measured drift times are evaluated, wherein for measuring the drift times the product ions are accelerated to drift velocities by a resulting electrical field. It is provided that the positive and negative product ions move synchronously and in parallel in the same direction.The invention further relates to a device for identifying gases, which includes at least two drift tubes, wherein each of the drift tubes has at least one respective detector for detecting product ions. For this purpose, at least two drift tubes are arranged in parallel next to each other and are delimited, on one hand, by a common inlet system and, on the other hand, by at least one detector.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.