Continuous vapor sampling of volatile organic compounds associated with explosives using capillary microextraction of volatiles (CMV) coupled to a portable GC–MS

Rodriguez, Jacqueline L.; Almirall, José R.

doi:10.1016/j.forc.2021.100380

Cited by 9 publications

(7 citation statements)

References 19 publications

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“…By comparison they reported headspace and simulated open air sampling resulted in less recoveries. The analytes were 3-NT, 2,4-DNT, DPA, EC, DBP and 2-NDPA, all compounds that can be found in smokeless powders [ 74 ].…”

Section: Sampling and Concentration Of Explosive Tracesmentioning

confidence: 99%

Interpol review of the analysis and detection of explosives and explosives residues

Klapec

Czarnopys

Pannuto

2023

Forensic Science International: Synergy

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Section: Sampling and Concentration Of Explosive Tracesmentioning

confidence: 99%

Interpol review of the analysis and detection of explosives and explosives residues

Klapec

Czarnopys

Pannuto

2023

Forensic Science International: Synergy

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“…Rodriguez et al. [176] used a commercial portable GC–MS (Griffin G510) to detect VOCs in the field at sub‐ng levels with recovery rates ranging from 3% to 89% for all VOCs tested.…”

Section: Applications Of Portable Mass Spectrometermentioning

confidence: 99%

“…This DART based system enabled the identification of drugs at low level (oxycodone/acetaminophen = 1/65) in complex mixtures. Commercial portable GC-MS options (Torion system and FLIR Griffin instrument) are being evaluated as a potentially suitable tool for field-based screening of the presence of illicit drugs and adulterants [175][176][177][178].…”

Section: Forensic Sciencementioning

confidence: 99%

“…A portable underwater mass spectrometer (33 kg) was used to acquire MS spectra with a rate of 0.7 -3.6 s/sample for 2-3 h and was remotely controlled to probe the composition of surface water and organics relevant to industrial spills [188][189][190]. Rodriguez et al [176] used a commercial portable GC-MS (Griffin G510) to detect VOCs in the field at subng levels with recovery rates ranging from 3% to 89% for all VOCs tested.…”

Section: Forensic Sciencementioning

confidence: 99%

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Portable mass spectrometry system: instrumentation, applications, and path to ‘omics analysis

et al. 2022

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Mass spectrometry (MS) is an information rich analytical technique and plays a key role in various 'omics studies. Standard mass spectrometers are bulky and operate at high vacuum, which hinder their adoption by the broader community and utility in field applications. Developing portable mass spectrometers can significantly expand the application scope and user groups of MS analysis. This review discusses the basics and recent advancements in the development of key components of portable mass spectrometers including ionization source, mass analyzer, detector, and vacuum system. Further, major areas where portable mass spectrometers are applied are also discussed. Finally, a perspective on the further development of portable mass spectrometers including the potential benefits for 'omics analysis is provided.

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“…NT and DNT isomers are separated using gas chromatography (GC) and liquid chromatography (LC), and the coupling of LC with mass spectrometry (MS) has been used to analyze these isomers 16–25 . The types of ions produced from NTs and DNTs can be influenced by the ionization method used, such as electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI), as well as by the solvent and eluent system 26–34 .…”

Section: Introductionmentioning

confidence: 99%

Ionization behaviors of nitrotoluenes and dinitrotoluenes by reactions with acetone‐related reactant ion

Choi,

Choi

2023

J Mass Spectrom

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Dinitrotoluenes (DNTs) and nitrotoluenes (NTs) are found in the environment as metabolites of trinitrotoluene (TNT). When acetone is used as the solvent/eluent in atmospheric pressure chemical ionization‐mass spectrometry (APCI‐MS), the reactant ion is [2Acetone + O2]•− for the negative ion mode. The reactant ion reacts with an analyte to produce M•− and/or [M – H]− under atmospheric pressure. In this study, ionization behaviors of NT (2‐, 3‐, and 4‐NTs) and DNT isomers (2,3‐, 2,4‐, and 2,6‐DNTs) by reactions with [2Acetone + O2]•− were investigated. The energy‐minimized structures of the product ions and their energies were calculated to explain the differences in the ionization behaviors. Typical NT‐ and DNT‐related ions were produced by reactions with [2Acetone + O2]•−; NT•−, [NT – H]−, DNT•−, [DNT – H]−, and [DNT – NO]− ions. The ionization efficiencies of NT‐ and DNT‐related ions increased by increasing the source fragmentor voltage, and those of DNT‐related ions were higher than those of the NT‐related ions owing to the presence of an additional nitro group. The ionization efficiency of 3‐NT•− was higher than that of [NT – H]−, while that of [DNT – H]− was higher than those of DNT•− and [DNT – NO]−. The ionization efficiency order of NT•− was 3‐NT > 4‐NT > 2‐NT, while that of [DNT – H]− was 2,4‐DNT > 2,6‐DNT > 2,3‐DNT. The [NT – H]− and [DNT – H]− ions were stabilized by resonance structures containing nitro groups. The [DNT – NO]− ions were formed through the transition state.

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Continuous vapor sampling of volatile organic compounds associated with explosives using capillary microextraction of volatiles (CMV) coupled to a portable GC–MS

Cited by 9 publications

References 19 publications

Interpol review of the analysis and detection of explosives and explosives residues

Interpol review of the analysis and detection of explosives and explosives residues

Portable mass spectrometry system: instrumentation, applications, and path to ‘omics analysis

Ionization behaviors of nitrotoluenes and dinitrotoluenes by reactions with acetone‐related reactant ion

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