0011321522

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0011321522, also known as Ion Mobility Spectrometry (IMS), is an analytical technique used to analyze and classify molecules through ionized gas. It is often used for filtering out and identifying contaminants under ambient conditions and for detecting and measuring trace chemical components in complex samples. IMS is typically used for drug detection, environmental analysis, food and beverage testing, and industrial hygiene applications.

Application Field

Ion Mobility Spectrometry (IMS) is primarily a gas phase separations technique. It takes advantage of the differences in gas phase mobility of ions of different sizes, shapes, and biases in order to separate and detect those ions. IMS is used in a variety of applications, especially in drug detection. It is often used to monitor drug concentrations in the bloodstream, to measure drug residue levels in a person’s body, and to gauge drug production processes. IMS can also be used to examine an individual’s breath for the presence of illicit drugs, making it a cost effective and non-invasive screening tool for law enforcement.

IMS is also useful in food and beverage testing. It can be used to accurately identify chemicals present in food and beverage samples. This is especially useful in identifying adulterants in food and beverages, such as allergen ingredients and pesticides, helping to ensure consumer safety. IMS is also a rapid and sensitive method of testing the microbial contamination in food. It is especially useful in the wine industry for detecting and assessing wine faults in wine production processes.

Furthermore, IMS can be used in industrial hygiene applications. These include the assessment of atmospheric contaminants or vapors in air quality monitoring and the detection of toxic gases present in the environment. IMS is also used for process monitoring in the chemical industry, providing essential information on the concentrations of reactants, intermediates, and products present in a reaction.

Working Principle

Ion Mobility Spectrometry (IMS) is based on the fact that ions of different sizes, shapes, and biases move differently through a gas. The ions are created by a process known as ionization. This process involves introducing the sample into an ion source, such as an electrospray source, a corona discharge source, or a glow discharge source. The ions are then accelerated and pass through a drift tube filled with an inert gas. During this process, the ions experience collisions with the gas molecules, which cause them to lose energy and momentum. This results in the ions moving at different speeds, depending on their size, shape, and bias.

The ions then pass through a detector at the end of the drift tube. As the ions move through the detector, they create an electric current, which is measured and translated into a signal. This signal can be used to identify and quantify the ions present in the sample. This signal is then compared to a reference signal to identify the ions present in the sample.

IMS is a rapid and sensitive method for measuring trace levels of ions. It can provide results in minutes and has a wide range of applications, making it an increasingly popular analytical technique.

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