Results 31 to 40 of about 2,465,079 (227)

Hyphenated differential mobility spectrometry for rapid separation and detection

Reviews in Analytical Chemistry, 2016
This paper reviews hyphenated differential mobility spectrometry (DMS) technology. DMS is a type of ion mobility spectrometry (IMS) also called high-field asymmetric waveform IMS. It is widely used in the detection of chemical warfare agents, explosives,
Yang Liu, Han Qiang, Cao Shuya, Yang Junchao, Zhao Jiang, Ding Mingyu   +5 more
doaj   +1 more source

Comparative Study of E-Nose, GC-MS, and GC-IMS to Distinguish Star Anise Essential Oil Extracted Using Different Extraction Methods

Separations, 2023
In this study, star anise (Illicium verum) essential oils (SAEOs) were extracted by hydrodistillation (HD), ethanol solvent extraction (ESE), supercritical CO2 (SCD) and subcritical extraction (SE) via electronic nose (E-nose), gas chromatography-mass ...
Xianghua Chai, Xiaowan Huang, Tong Zhang, Kegang Wu, Xuejuan Duan, Hongpeng Yu, Xiaoli Liu   +6 more
doaj   +1 more source

Smart detection of juice adulteration: An approach based on ion mobility spectrometry and machine learning. [PDF]

J Sci Food Agric
Abstract BACKGROUND Fruit juice quality is regulated by European Union legislation; however, adulteration by adding cheaper alternatives, such as white grape juice, remains a prevalent issue. This practice constitutes economic fraud and poses health risks to consumers, including potential allergic reactions to the adulterant.
Calle JLP, Ferreiro-González M, Palma M.   +2 more
europepmc   +2 more sources

Ion mobility spectrometry reveals intermediate states in temperature-resolved DNA unfolding [PDF]

, 2017
Electrospray ionization (ESI) mass spectrometry (MS) is used to study the non-covalent interactions of short 12-mer oligonucleotides under native conditions.
R.M.A. Heeren, Porta, T., B. Hommersom, Heeren, R. M. A., Hommersom, B., T. Porta   +5 more
core   +2 more sources

Implementation of a flexible, open-source platform for ion mobility spectrometry

HardwareX, 2018
When operated as a stand-alone device, an ion mobility spectrometer (IMS) routinely offers low limits of detection (pptv-range) for gas-phase analytes even for measurement times less than a second.
Tobias Reinecke, Brian H. Clowers
doaj   +1 more source

Flexible Drift Tube for High Resolution Ion Mobility Spectrometry (Flex-DT-IMS) [PDF]

Analytical Chemistry, 2020
This paper describes, in detail, the development of a novel, low-cost, and flexible drift tube (DT) along with an associated ion mobility spectrometer system. The DT is constructed from a flexible printed circuit board (PCB), with a bespoke "dog-leg" track design, that can be rolled up for ease of assembly. This approach incorporates a shielding layer,
Barry L. Smith, Cedric Boisdon, Iain S. Young, Thanit Praneenararat, Tirayut Vilaivan, Simon Maher   +5 more
openaire   +2 more sources

Nanospray desorption electrospray ionization (nano-DESI) mass spectrometry imaging with high ion mobility resolution [PDF]

, 2023
Untargeted separation of isomeric and isobaric species in mass spectrometry imaging (MSI) is challenging. The combination of ion mobility spectrometry (IMS) with MSI has emerged as an effective strategy for differentiating isomeric and isobaric species ...
Manxi, Yang, Heiko, Neuweger, Hang, Hu, Lixue, Jiang, Ryan, Hilger, Julia, Laskin, Emerson, Hernly   +6 more
core   +2 more sources

Assignment of polymorphic species of insulin analogues in ion mobility mass spectroscopy

Data in Brief, 2017
Electrospray ionization – ion mobility spectrometry – mass spectrometry (ESI–IMS–MS) allows the identification of protein polymorphic distribution of protein conformers and oligomers.
Maely P. Fávero-Retto, Luiz Henrique Guerreiro, Cássio M. Pessanha, Leonardo C. Palmieri, Luís Maurício T.R. Lima   +4 more
doaj   +1 more source

Field-Dependent Reduced Ion Mobilities of Positive and Negative Ions in Air and Nitrogen in High Kinetic Energy Ion Mobility Spectrometry (HiKE-IMS) [PDF]

Journal of the American Society for Mass Spectrometry, 2020
In High Kinetic Energy Ion Mobility Spectrometry (HiKE-IMS), ions are formed in a reaction region and separated in a drift region, which is similar to classical drift tube ion mobility spectrometers (IMS) operated at ambient pressure. However, in contrast to the latter, the HiKE-IMS is operated at a decreased background pressure of 10–40 mbar and ...
Maria Allers, Ansgar T. Kirk, Christoph Schaefer, Duygu Erdogdu, Walter Wissdorf, Thorsten Benter, Stefan Zimmermann   +6 more
openaire   +2 more sources

Electrospray Quadrupole Travelling Wave Ion Mobility Time-of-Flight Mass Spectrometry for the Detection of Plasma Metabolome Changes Caused by Xanthohumol in Obese Zucker (fa/fa) Rats

Metabolites, 2013
This study reports on the use of traveling wave ion mobility quadrupole time-of-flight (ToF) mass spectrometry for plasma metabolomics. Plasma metabolite profiles of obese Zucker fa/fa rats were obtained after the administration of different oral doses ...
Claudia S. Maier, Adrian F. Gombart, Jan F. Stevens, Yuan Jiang, Jeff Morré, Jay Kirkwood, Samanthi I. Wickramasekara, LeeCole Legette, Fereshteh Zandkarimi   +8 more
doaj   +1 more source