Smiths Detection Montreal, Inc.

Smiths Detection Inc.

Smiths Detection Inc. - Toronto

John J Carroll

Qunzhou Bian

Reno Francis Debono

Robert Bruce Sandor

Volodimir Bondarenko

Julian C Burton

Robert T James

Sabatino Nacson

Tri Le

Alexander Grigoriev

Reno DeBono

Robert Sandor

Method and systems for managing clear-down are provided. The method can include generating a clear-down trigger associated with an ion mobility spectrometer and operating the ion mobility spectrometer in fast clear-down mode in response to the clear-down trigger. Methods and systems can further provide that where the ion mobility spectrometer operates in fast-switching mode, the ion mobility spectrometer alternating a plurality of times between operation according to a positive ion mode and operation according to a negative ion mode, and further operating according to the positive ion mode for less than about 1 second before switching to the operation according to the negative ion mode, and operating according to the negative ion mode for less than about 1 second before switching to the operation according to the positive ion mode.

Ion mobility spectrometer clear-down

An ion mobility spectrometer analytical instrument, including an ion mobility spectrometer, a swab interface, and a desorber assembly. The desorber assembly includes a heat transfer device configured to heat a desorber, as well as a supply configured to direct gas through the desorber. The instrument further includes a drift tube, high voltage device arrayed, at least in part, proximate to the drift tube, wherein the high voltage device is configured to change a polarity of a voltage applied to the drift tube and have an absolute voltage of about 500 to 1500 volts. The instrument further includes a reactant supply unit adapted to supply reactant during a sample substance analysis, and a control unit.

Analytical instrument with temporal control of ion mobility spectrometer control parameters

A system and method for introducing and analyzing a sample containing an analyte using an ion mobility spectrometer are described. The system includes a temperature module for adjusting the temperature of the sample according to temperature instructions received, and a split ratio module for adjusting the split ratio according to split ratio instructions received. An ion mobility analyzer determines an ion mobility of the analyte. The ion mobility analyzer collects a plasmagram of the analyte to identify and quantitate the analyte.

Method and system for introducing an analyte into an ion mobility spectrometer

A system and method for establishing the cleanliness of a device by performing a test is described. The system includes an ion mobility spectrometer to measure target signal strengths, and to measure n&#x2267;1 test signal strengths of a device sample. The system also includes a statistics module to obtain a value of a statistical confidence-level parameter that is associated with a particular confidence level, and a pass range module to obtain a pass range of signal strengths from the value of the statistical confidence-level parameter and the ntarget signal strengths. The system also includes an averaging module to obtain an average test signal strength from the ntest signal strengths, and a results module to determine that the device passes the test, indicating that the device is significantly clean to within the particular confidence level, if the average test signal strength lies in the pass range.

Method and system for establishing the cleanliness of a device

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Morristown, NJ, United States of America

John J Carroll