IMS
Ion Mobility Spectrometry (IMS) is an analytical technique used to detect trace amounts of chemical substances, particularly volatile organic compounds. The process begins by ionizing sample molecules, generating ions that enter a drift tube maintained at low pressure, forming a cloud. Under the influence of a uniform electric field, ions move within the tube and collide with buffer gas molecules. The ion migration velocity is influenced by factors such as size and charge, forming a unique migration spectrum.
At the end of the tube, a detector records the arrival time of ions, generating a unique ion mobility spectrum. This spectrum serves as a fingerprint of the chemical composition, and analysis personnel can identify substances in the sample by comparing it with known spectra in a database.
Ion Mobility Spectrometry is known for its high sensitivity and rapid analysis, making it useful in the security field for detecting explosives and drugs, as well as in environmental monitoring and analytical chemistry. Its efficiency and wide applicability make it an important tool in multiple scientific and industrial fields.
Technology Features
Quickly identify the detected gases
High selectivity: Ion mobility technology can effectively separate and screen ions based on their characteristics, enabling accurate identification and qualitative analysis of target ions
Sensitivity: Ion mobility technology typically has high sensitivity, capable of detecting trace amounts of ion components, even in complex samples, ensuring reliable ion analysis and qualitative identification
Label-free: Ion mobility technology does not require sample labeling or the addition of markers, allowing direct analysis of ions in the sample, simplifying experimental steps and procedures
Qualitative and quantitative analysis in one go
Accuracy: Ion mobility technology exhibits high accuracy, capable of precisely measuring the concentration of ions in samples, providing reliable quantitative analysis results
Sensitivity: Ion mobility technology typically demonstrates high sensitivity, capable of detecting low concentrations of ion components, enabling quantitative analysis of trace ions
Real-time monitoring: Ion mobility technology enables real-time monitoring of ion concentrations, allowing timely tracking of changes in ion concentration, thereby providing essential support for process control and quality monitoring
