Results 41 to 50 of about 1,565,920 (282)

Aldehydes gas ozonation monitoring: Interest of SIFT/MS versus GC/FID [PDF]

Chemosphere, 2019
Two analytical techniques - online Gas Chromatography coupled with Flame Ionization Detector (often used method for VOCs monitoring) versus Selected Ion Flow Tube coupled with Mass Spectrometry (a more recent technique based on direct mass spectrometry) - were compared in association to an ozone-based gas treatment.
Vitola Pasetto, Leticia, Simon, Valérie, Richard, Romain, Pic, Jean-Stéphane, Violleau, Frédéric, Manero, Marie-Hélène   +5 more
openaire   +11 more sources

Headspace-Selected Ion Flow Tube Mass Spectrometry Workflows for Rapid Screening and Quantitation of Hazardous Volatile Impurities in Personal Care Products

Analytica
Personal care products (PCPs) are intended for regular application by consumers and therefore assuring the safety of these products is very important. Recently, benzene contamination has been highlighted in certain PCPs.
Mark J. Perkins, Colin J. Hastie, Vaughan S. Langford   +2 more
doaj   +1 more source

Increase of methanol in exhaled breath quantified by SIFT-MS following aspartame ingestion [PDF]

Journal of Breath Research, 2015
Aspartame, methyl-L-α-aspartyl-L-phenylalaninate, is used worldwide as a sweetener in foods and drinks and is considered to be safe at an acceptable daily intake (ADI) of 40 mg per kg of body weight. This compound is completely hydrolyzed in the gastrointestinal tract to aspartic acid, phenylalanine and methanol, each being toxic at high levels.
Španěl, P. (Patrik), Dryahina, K. (Kseniya), Vicherková, P., Smith, D.   +3 more
openaire   +3 more sources

RI-LPOH: Rotation-Invariant Local Phase Orientation Histogram for Multi-Modal Image Matching

Remote Sensing, 2022
To better cope with the significant nonlinear radiation distortions (NRD) and severe rotational distortions in multi-modal remote sensing image matching, this paper introduces a rotationally robust feature-matching method based on the maximum index map ...
Huangwei Tu, Yu Zhu, Changpei Han
doaj   +1 more source

A Novel Modified Petroresin Particle (MPRP) With Enhanced Oil–Water Selectivity for Cold Production in Heavy Oil Reservoirs

Advanced Functional Materials, EarlyView.
A novel oil–water selective conformance control agent, MPRP, is prepared via hydrophilic grafting and mechanical granulation. MPRP uniformly disperses in water, cohesively expands upon aging, and readily dissolves in the oil phase. During conformance control, it selectively aggregates in water channeling pathways to form effective plugs without ...
Guang Zhao, Dongfang Lv, Chang Liu, Changxu Wu, Yifei Liu, Caili Dai, Huazhou Li   +6 more
wiley   +1 more source

Large-scale SIFT-MS volatile profiling of Vitis vinifera berries grown under greenhouse semi-controlled conditions

OENO One
Selected ion flow tube mass spectrometry (SIFT-MS) is a promising high-throughput technology to phenotype individuals for their berry aroma composition.
Thomas Baerenzung dit Baron, Amal Chikri, Olivier Rodrigues, Alban Jacques, Aurélie Roland, Flora Tavernier, Charles Romieu, Vincent Segura, Dominique This, Roberto Bacilieri, Agnès Doliguez, Thierry Simoneau, Aude Coupel-Ledru, Olivier Geffroy   +13 more
doaj   +1 more source

Hydrophilic Polymers Enable Gastrointestinal Transit Monitoring by Fluorine‐19 Magnetic Resonance Imaging

Advanced Healthcare Materials, EarlyView.
Hydrophilic fluorinated copolymers dissolve in chyme and give a strong, single 19F signal, unlike phase‐separating perfluorocarbons. Combined 1H‐19F MRI tracks their whole‐gut transit non‐invasively and without ionizing radiation. In rats, the tracers move through the gastrointestinal tract, resist resorption, and are well tolerated, a proof‐of‐concept
Ondřej Groborz, Vít Herynek, Mária Hovořáková, Zuzana Pavlíková, Linda Dalecká, Klára Steklíková, Petr Matouš, Petr Páral, Margarita Tkachenko, Filip Koucký, Fatma Nalan Cetin, Ludmila Maffei Svobodová, Jiří Beneš, Kristýna Kolouchová   +13 more
wiley   +1 more source

ssec/sift: Version 1.1.3

, 2020
Pull Requests Merged Bugs fixed PR 296 - Update bundle scripts to handle installation directory being moved PR 293 - Fix HiDPI setting being set too late PR 292 - Fix bundle script having wrong permissions and activation path PR 288 - Fix STANDARD_NAME ...
k30n1, Rohan Daruwala, Coda Phillips, David Hoese, William Roberts, rdaruwala, Stickler Bot, R.K.Garcia, Katherine Kolman   +8 more
core   +1 more source

Azobenzene's Cross‐Scale Optics and Photonics: Molecular Photoswitching, Mesoscopic Material Motions, and Adaptive Devices

Advanced Materials, EarlyView.
Azobenzene photoswitches translate molecular‐scale E/Z photoisomerization into macroscopic material responses and device‐level photonic functions. This Review highlights how azobenzene research has evolved from molecular photochemistry to photoalignment, mass migration, photomechanics, and heat release, ultimately enabling holography, reconfigurable ...
Heeju Son, Soyul Kwak, Heerin Noh, Minsang Kim, Doyeon Noh, Subhayan Chakraborty, Jaewon Lee, YongDeok Cho, Kyeongsoo Kim, Taewoong Eom, Moonyoung Kim, Jangwon Kim, Hoyoung Lee, Soyoung Lee, Jaehun Kim, Grace G. D. Han, Shin‐Tson Wu, Stefano Oscurato, Arri Priimagi, Marina Saphiannikova, Seungwoo Lee   +20 more
wiley   +1 more source

Quantitative Analysis of NDMA in Drug Products: A Proposed High-Throughput Approach Using Headspace–SIFT-MS

AppliedChem
Since the initial 2018 recall of angiotensin receptor blockers due to unacceptable levels of mutagenic N-nitrosodimethylamine (NDMA) impurity, numerous drug products delivering diverse active pharmaceutical ingredients (APIs) have been recalled ...
Mark J. Perkins, Colin J. Hastie, Vaughan S. Langford   +2 more
doaj   +1 more source