Ultrafast gas chromatography-tandem differential mobility spectrometry: toward a new generation of on-site, real-time trace-explosives detection

JA Threadgold, PE Fowler, GA Eiceman - Analytical Chemistry, 2024 - ACS Publications
In the defense and security sector, rapid detection of trace quantities of threat materials is
paramount. Traditional instrumentation typically relies on standalone ion mobility techniques …

Quantitative Distributions of Product Ions and Reaction Times with a Binary Mixture of VOCs in Ambient Pressure Chemical Ionization

E Lattouf, O Anttalainen, O Hecht… - Journal of the …, 2023 - ACS Publications
A model to quantitatively predict ion abundances from atmospheric pressure chemical
ionization (APCI) between hydrated protons and a volatile organic compound (VOC) was …

Humidity effect on the drift times of the reactant ions in ion mobility spectrometry

Z Izadi, M Tabrizchi, H Borsdorf… - Analytical …, 2019 - ACS Publications
The effect of moisture content on the drift times of NH4+ and H3O+ reactant ions at different
temperatures was experimentally and theoretically studied using an ion mobility …

Computer Vision-Assisted Robotized Sampling of Volatile Organic Compounds

CC Chan, NH Abu Bakar, CM Raju… - Analytical …, 2024 - ACS Publications
In conventional chemical analysis, samples are homogenized, extracted, purified, and
injected into an analytical instrument manually or with a certain degree of automation. Such …

Field induced fragmentation (Fif) spectra of oxygen containing volatile organic compounds with reactive stage tandem ion mobility spectrometry and functional group …

H Shokri, EG Nazarov, BD Gardner, HC Niu… - Analytical …, 2020 - ACS Publications
Mobility isolated spectra were obtained for protonated monomers of 42 volatile oxygen
containing organic compounds at ambient pressure using a tandem ion mobility …

Influence of Sample Gas Humidity on Product Ion Formation in High Kinetic Energy Ion Mobility Spectrometry (HiKE-IMS)

C Schaefer, F Schlottmann, AT Kirk… - Journal of the …, 2022 - ACS Publications
High Kinetic Energy Ion Mobility Spectrometers (HiKE-IMS) chemically ionize gaseous
samples via reactant ions and separate the generated ions by their motion in a neutral gas …

High Kinetic Energy Ion Mobility Spectrometry (HiKE-IMS) at 40 mbar

F Schlottmann, AT Kirk, M Allers… - Journal of the …, 2020 - ACS Publications
High Kinetic Energy Ion Mobility Spectrometers (HiKE-IMS) are usually operated at an
absolute pressure of 20 mbar reaching high reduced electric field strengths of up to 125 Td …

Influence of reduced field strength on product ion formation in high kinetic energy ion mobility spectrometry (HiKE-IMS)

C Schaefer, M Allers, AT Kirk… - Journal of the …, 2021 - ACS Publications
Classical ion mobility spectrometers (IMS) operated at ambient pressure, often use
atmospheric pressure chemical ionization (APCI) sources to ionize organic compounds. In …

[HTML][HTML] Pursuing drug laboratories: Analysis of drug precursors with High Kinetic Energy Ion Mobility Spectrometry

C Schaefer, M Lippmann, C Schindler… - Forensic Science …, 2024 - Elsevier
Abstract High Kinetic Energy Ion Mobility Spectrometry (HiKE-IMS) is a technique for rapid
and reliable detection of trace compounds down to ppb V-levels within one second …

A high-performance standalone planar FAIMS system for effective detection of chemical warfare agents via TSPSO algorithm

J Hao, R Feng, J Li, W Gao, J Yu, K Tang - Talanta, 2024 - Elsevier
A high-performance standalone planar field asymmetric waveform ion mobility spectrometry
(p-FAIMS) system with a deconvolution algorithm (two-step particle swarm optimization …