1983
DOI: 10.1002/jhrc.1240060102
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Halogenated compound response in an oxygen doped ion mobility detector for capillary gas chromatography

Abstract: An ion mobility detector that has been specifically developed for interfacing with capillary gas chromatography is investigated in the negative ion mode. Like the electron capture detector, to which this instrument is closely related, the ion mobility detector shows an enhanced response to low molecular weight halogenated compounds when a small quantity of oxygen is doped into the make-up gas flow. Under 0 2 doping conditions, the device can operate in a reactant ion monitoring mode responding universally to c… Show more

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Cited by 20 publications
(2 citation statements)
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“…Investigations into the response characteristics of the IMD have shown it to be extremely sensitive to organic compounds. Minimum detectable amounts are typically in the low picogram range and detector response is exponential with weight nnjected over approximately 2 orders of magnitude (usually 1-100 pg) (14).…”
mentioning
confidence: 99%
“…Investigations into the response characteristics of the IMD have shown it to be extremely sensitive to organic compounds. Minimum detectable amounts are typically in the low picogram range and detector response is exponential with weight nnjected over approximately 2 orders of magnitude (usually 1-100 pg) (14).…”
mentioning
confidence: 99%
“…An important challenge facing law enforcement and military personnel is the ability to detect, correctly identify, and interdict the illegal possession of explosives intended to initiate terror and harm citizens, both nationally and internationally. Ion mobility spectrometry (IMS) is a proven technology for trace screening of explosive compounds in field settings (1–16). Some of the advantages with IMS include the following: low detection limits for single‐component samples (nanogram detection limits); fast analysis time (provides output data in seconds); no required sample pretreatment of solids or analytes in solution; operates at atmospheric pressure eliminating bulky vacuum systems, detects both positive and negative ions, which provides good selectivity; can be miniaturized and battery operated; and is comparably less expensive to purchase and operate than other trace detection technologies (1,2,4,5,10,17,18).…”
mentioning
confidence: 99%