Detection of ethylene glycol dinitrate vapors by ion mobility spectrometry using chloride reagent ions

Lawrence, A. H.; Neudörfl, P.

doi:10.1021/ac00153a002

Cited by 76 publications

(44 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The detection of TNT from 10 ng of sample has been demonstrated (Pfeifer & Sanchez, 2002). The detection of ethylene glycol dinitrate (EGDN) with chloride reagent ions has been reported (Lawrence & Neudorfl, 1988). Spangler, Carrico, and Campbell (1985) have used background subtraction technique and additional chloride ions to facilitate explosive analysis.…”

Section: Ims Applications In Explosive Analysesmentioning

confidence: 99%

Ion spectrometric detection technologies for ultra‐traces of explosives: A review

Mäkinen

Nousiainen

Sillanpää

2011

Mass Spectrometry Reviews

147

102

View full text Add to dashboard Cite

In recent years, explosive materials have been widely employed for various military applications and civilian conflicts; their use for hostile purposes has increased considerably. The detection of different kind of explosive agents has become crucially important for protection of human lives, infrastructures, and properties. Moreover, both the environmental aspects such as the risk of soil and water contamination and health risks related to the release of explosive particles need to be taken into account. For these reasons, there is a growing need to develop analyzing methods which are faster and more sensitive for detecting explosives. The detection techniques of the explosive materials should ideally serve fast real-time analysis in high accuracy and resolution from a minimal quantity of explosive without involving complicated sample preparation. The performance of the in-field analysis of extremely hazardous material has to be user-friendly and safe for operators. The two closely related ion spectrometric methods used in explosive analyses include mass spectrometry (MS) and ion mobility spectrometry (IMS). The four requirements-speed, selectivity, sensitivity, and sampling-are fulfilled with both of these methods.

show abstract

Section: Ims Applications In Explosive Analysesmentioning

confidence: 99%

Ion spectrometric detection technologies for ultra‐traces of explosives: A review

Mäkinen

Nousiainen

Sillanpää

2011

Mass Spectrometry Reviews

147

102

View full text Add to dashboard Cite

show abstract

“…Since this is a 2-step process it is less efficient than single step ionization. The addition of chloride reagent ions enhanced the sensitivity for the detection of nitroamine or nitrate ester by producing a M·Cl -adduct [48]. Some other explosives such as tetryl are not well characterized or discussed in the literature.…”

Section: Atmospheric Pressure Chemical Ionization Of Explosivesmentioning

confidence: 99%

Atmospheric Pressure Chemical Ionization Sources Used in The Detection of Explosives by Ion Mobility Spectrometry

Waltman

2010

View full text Add to dashboard Cite

were selected to evaluate the new ionization source. A lifetime experiment was run to test the stability of the source. The source was operated continuously for three months and although surface deterioration was observed visually, the source continued to produce ions at a rate similar that of the initial conditions.The ions created in a discharge were dependent upon experimental conditions. It was postulated that the change in ions was caused by reactions with neutral species O 3 and NO 2 . In an effort to better understand the formation of negative reactant ions in air produced by an atmospheric pressure corona discharge source, the neutral vapors generated by a corona discharge were introduced in varying amounts into the ionization region of an ion mobility spectrometer/mass spectrometer containing a 63 Ni ionization source. With no discharge gas, the predominant ions were O 2 -, however, upon the introduction of low levels of discharge gas the NO 2 -ion quickly became the dominant

show abstract

“…In evaluating the values, the lower the DG value (kJ mol − 1 ) the more energetically favorable it will be for the analyte to lose a proton and form the anion. Employing chloride as the reactant ion is common in explosives analysis due to the enhanced ion stability gained from chloride adduct formation and the selectivity for nitro-containing explosives over contaminants [8,23]. This selectivity advantage is exemplified in Table 2 in which ten of the seventeen compounds were not detected.…”

Section: Ims Response For 17 Suspected Contaminantsmentioning

confidence: 99%

“…Further experiments throughout the next 3 decades have proven IMS to be able to detect and separate a wide range of explosives [6] and to be amenable to field applications [7]. Additional selectivity for explosives in IMS has been achieved by altering reactant ion chemistry with chloride [8,9] and bromide [9]. In addition to enhanced selectivity, the formation of chloride adducts with unstable explosive compounds were shown to enable ion stability, especially at higher IMS temperatures [10].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of suspected interferents for TNT detection by ion mobility spectrometry

Matz

Tornatore

Hill

2001

Talanta

View full text Add to dashboard Cite

Detection of ethylene glycol dinitrate vapors by ion mobility spectrometry using chloride reagent ions

Cited by 76 publications

References 22 publications

Ion spectrometric detection technologies for ultra‐traces of explosives: A review

Ion spectrometric detection technologies for ultra‐traces of explosives: A review

Atmospheric Pressure Chemical Ionization Sources Used in The Detection of Explosives by Ion Mobility Spectrometry

Evaluation of suspected interferents for TNT detection by ion mobility spectrometry

Contact Info

Product

Resources

About