Differential Ion Mobility Spectrometry in Application to the Analysis of Gases and Vapours

2014 ◽  
Vol 223 ◽  
pp. 283-290 ◽  
Author(s):  
Mirosław Maziejuk ◽  
Wiesław Lisowski ◽  
Monika Szyposzyńska ◽  
Tomasz Sikora ◽  
Anna Zalewska
Keyword(s):  
Ion Mobility Spectrometry ◽  
Ion Mobility ◽  
Chemical Warfare Agents ◽  
Chemical Warfare ◽  
Differential Ion Mobility Spectrometry ◽  
Alternating Electric Field ◽  
Different Types ◽  
Warfare Agents ◽  
Industrial Compounds ◽  
Alpha Function

Ion mobility spectrometry (IMS) is a technique used for the detection of chemical warfare agents (CWA), drugs, toxic industrial compounds (TIC), and explosives, when rapid detection should be performed (from a few to several seconds) for trace amounts of these substances. An important development of IMS technology is differential ion mobility spectrometry (DMS). DMS is also known as Field Asymmetric Waveform Ion Mobility Spectrometry (FAIMS). Detection possibilities of apparatus using the DMS method are based on the occurrence of the different mobilities of ions (K) in the alternating electric field. This dependence is characterized by the alpha function (α).This presentation shows methods and examples of the identification of chosen substances. The results for the dependence of coefficient α are specific for different types of substances. This specificity is used to identify vapours and gases.

Ion Mobility Spectrometry and Its Applications in Detection of Chemical Warfare Agents

2010 ◽  
Vol 82 (23) ◽  
pp. 9594-9600 ◽  
Author(s):  
Marko A. Mäkinen ◽  
Osmo A. Anttalainen ◽  
Mika E. T. Sillanpää
Keyword(s):  
Ion Mobility Spectrometry ◽  
Ion Mobility ◽  
Chemical Warfare Agents ◽  
Chemical Warfare ◽  
Warfare Agents

Ion Mobility Spectrometry for Monitoring Chemical Warfare Agents

2012 ◽  
Vol 241-244 ◽  
pp. 980-983 ◽  
Author(s):  
Jian Zheng ◽  
Tian Min Shu ◽  
Jie Jin
Keyword(s):  
Ion Mobility Spectrometry ◽  
Ion Mobility ◽  
Cluster Formation ◽  
Chemical Warfare Agents ◽  
Chemical Warfare ◽  
Ambient Conditions ◽  
Ionization Source ◽  
Warfare Agents ◽  
Positive Mode ◽  
Detecting Method

The technique of ion mobility spectrometry (IMS) offers a practical and fast detecting method in ambient conditions to estimate whether there may presence contrabands or even chemical warfare agents (CWAs). In this work we have investigated a self-made radioactive 63Ni (β emission) ionization source for ion mobility spectrometry employed with an atmospheric pressure to detect real CWAs, such as GB, GD, HD, VX from aerosol samples. Furthermore, we have experimentally studied the influence of drift tube temperature not only in ion cluster formation in the positive mode, but also the detection limitation of CWAs.

scholarly journals Ion Mobility Spectrometry in Food Analysis: Principles, Current Applications and Future Trends

Molecules ◽  
2019 ◽  
Vol 24 (15) ◽  
pp. 2706 ◽  
Author(s):  
Maykel Hernández-Mesa ◽  
David Ropartz ◽  
Ana M. García-Campaña ◽  
Hélène Rogniaux ◽  
Gaud Dervilly-Pinel ◽  
...  
Keyword(s):  
Ion Mobility Spectrometry ◽  
Food Analysis ◽  
Ion Mobility ◽  
Collision Cross Section ◽  
Chemical Warfare Agents ◽  
Food Composition ◽  
Current Status ◽  
Mass Spectrometers ◽  
Warfare Agents ◽  
Composition Process

In the last decade, ion mobility spectrometry (IMS) has reemerged as an analytical separation technique, especially due to the commercialization of ion mobility mass spectrometers. Its applicability has been extended beyond classical applications such as the determination of chemical warfare agents and nowadays it is widely used for the characterization of biomolecules (e.g., proteins, glycans, lipids, etc.) and, more recently, of small molecules (e.g., metabolites, xenobiotics, etc.). Following this trend, the interest in this technique is growing among researchers from different fields including food science. Several advantages are attributed to IMS when integrated in traditional liquid chromatography (LC) and gas chromatography (GC) mass spectrometry (MS) workflows: (1) it improves method selectivity by providing an additional separation dimension that allows the separation of isobaric and isomeric compounds; (2) it increases method sensitivity by isolating the compounds of interest from background noise; (3) and it provides complementary information to mass spectra and retention time, the so-called collision cross section (CCS), so compounds can be identified with more confidence, either in targeted or non-targeted approaches. In this context, the number of applications focused on food analysis has increased exponentially in the last few years. This review provides an overview of the current status of IMS technology and its applicability in different areas of food analysis (i.e., food composition, process control, authentication, adulteration and safety).

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