A method for detecting organic substances based on gas phase ion mobility spectrometry
By employing time segmentation and parameter optimization methods, the problem of long switching time between positive and negative ion modes in gas phase ion mobility spectrometry was solved, achieving efficient and accurate detection of organic matter and improving detection efficiency and result reliability.
CN120177652BActive Publication Date: 2026-06-02SHANDONG MEASUREMENT SCI RES INST
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG MEASUREMENT SCI RES INST
- Filing Date
- 2025-03-17
- Publication Date
- 2026-06-02
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Figure CN120177652B_ABST
Abstract
The application discloses a kind of organic matter detection methods based on gas phase ion mobility spectrometry, it is related to gas phase ion mobility spectrometry field;The present application is by detecting time segmentation and detection program setting, the sample detection time is divided into positive ion mode peak time, negative ion mode peak time and no peak time, instrument mode and migration tube voltage are reasonably set in different time periods, at the same time, when positive and negative ion mode is switched, first close migration tube voltage, after voltage is zero, mode is switched again and voltage is reopened, avoid the electric field interference caused by direct switching, shorten stable time to minute level, greatly improve detection efficiency.
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