ION MOBILITY SPECTROMETER
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- GOTTFRIED WILHELM LEIBNIZ UNIV HANNOVER
- Filing Date
- 2020-09-23
- Publication Date
- 2026-05-07
AI Technical Summary
Existing ion mobility spectrometers face challenges in efficiently introducing and distributing sample gas for ionization due to the stationary nature of the ion packet within the ionization chamber, leading to inefficient mixing and potential turbulence, which affects the sensitivity and accuracy of trace gas detection.
The ion mobility spectrometer incorporates a separate discharge channel connected to the ionization chamber, allowing for efficient sample gas distribution orthogonal to the ion drift direction, with a field-switching shutter or pulsed ionization source to move ions into the drift chamber, ensuring precise gas flow and ionization without turbulence.
This design enables efficient and sensitive measurements by preventing gas turbulence and mixing, ensuring precise ionization and distribution of sample gas, thereby enhancing the sensitivity and accuracy of trace gas detection.