In situ chemical transformation and ionization of inorganic perchlorates on surfaces

A chemical conversion, inorganic oxidant technology, applied in circuits, discharge tubes, scientific instruments, etc., can solve problems such as lack of characteristics

Active Publication Date: 2016-04-27
SMITHS DETECTION MONTREAL
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, some samples contain substances suitable for detection (e....

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  • In situ chemical transformation and ionization of inorganic perchlorates on surfaces
  • In situ chemical transformation and ionization of inorganic perchlorates on surfaces
  • In situ chemical transformation and ionization of inorganic perchlorates on surfaces

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[0040] The following discussion describes processes performed using embodiments of the analyte detection systems (eg, sample analysis systems) 100 , 300 , and 400 described above. This process is shown as a set of blocks that perform specific operations by one or more devices and is not necessarily limited to the order shown for performing the operations of the respective blocks. In the sections discussed below, reference will be made to figure 1 , 3 and 4 in the embodiment of the sample analysis system.

[0041] Figure 5 described by figure 1 and image 3 The analyte detection system 100, 300 is shown as a procedure (eg, method, process) 500 in an example embodiment for providing in situ chemical conversion and ionization of the surface of a sample moiety (eg, inorganic oxidizing agent). In an embodiment, procedure 500 may be performed under automated (eg, computer) control.

[0042] In particular embodiments, procedure 500 may include introducing a transport gas into ...

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Abstract

A method for providing in situ chemical transformation and ionization of a portion (e.g., inorganic oxidizer) of a sample via an analyte detection system is disclosed herein. The method includes introducing a gas into an ionization source of the analyte detection system via an inlet. The method further includes generating ions within the ionization source and directing the gas and generated ions through and out of the ionization source and to the sample. The sample is located proximal to the ionization source in an ambient environment. The ions chemically react with the sample and desorb and ionize an analyte from the sample, the analyte being generated from the inorganic oxidizer, the desorbed analyte having a lower melting point and/or better desorption kinetics than the inorganic oxidizer. The method further includes receiving the desorbed analyte via an analyzer of the analyte detection system.

Description

[0001] Related Application Citations [0002] This application claims priority to U.S. Provisional Patent Application Serial No. 61 / 857,721, entitled "In Situ Chemical Transformation and Ionization of Inorganic Perchlorate Surfaces," filed July 24, 2013, which is hereby incorporated by reference . Background technique [0003] Desorption-based detection systems are commonly used to identify chemical agents in samples. Currently available desorption-based detection systems, such as swab desorption-based ion mobility spectrometry systems, are well suited for detecting vaporized substance. Alternatively, currently available desorption-based detection systems are also well suited for the detection of substances that decompose upon heating to form characteristic species that can be easily evaporated and detected. However, some samples contain substances suitable for detection (eg, analytes, chemical reagents) that do not possess the above properties. Contents of the invention ...

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Application Information

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IPC IPC(8): G01N1/44G01N1/28G01N27/64H01J49/26
CPCG01N1/02G01N2001/028H01J49/142G01N1/28G01N1/44G01N27/64H01J49/26H01J49/16
Inventor J·亨德里克瑟V·罗门诺夫
Owner SMITHS DETECTION MONTREAL
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