Results 31 to 40 of about 5,847,752 (237)

Simulation of Unidirectional Ion Ejection in Miniature Four-Channel Linear Ion Trap Array

Sensors
With the surging demand for dynamic, real-time, and rapid qualitative analysis of chemical components, chip-scale mass spectrometers have attracted widespread attention.
Yunfan He, Zhuoqing Yang, Yan Zhang, Yunna Sun, Jinyuan Yao, Guifu Ding   +5 more
doaj   +1 more source

A micropixelated ion-imaging detector for mass resolution enhancement of a QMS instrument

, 2015
An in-vacuum position-sensitive micropixelated detector (Timepix) is used to investigate the time-dependent spatial distribution of different charge state (and hence different mass-to-charge (m/z)) ions exiting an electrospray ionization (ESI)-based ...
Kistemaker, Piet, Heeren, Ron M. A., Maher, Simon, Syed, Sarfaraz U. A. H., Eijkel, Gert B., Taylor, Stephen   +5 more
core   +1 more source

Simulation Study of an Extremely Miniature Hyperbolic Linear Ion Trap

Zhipu Xuebao
The miniaturization of mass spectrometers has garnered significant attention in the analytical chemistry community. Leveraging the rapid advancements in micro-electro-mechanical system (MEMS), the development of chip-scale mass spectrometers has emerged ...
Yun-fan HE, Hong-liang ZHU, Zhuo-qing YANG, Yan WANG, Gui-fu DING, Jiu-wen SUN, Dong-ting WEI, Min LIU, Jin-yuan YAO   +8 more
doaj   +1 more source

High-Resolution Ion Mobility Spectrometry Mass Spectrometry for Isomeric Separation of Prostanoids after Girard's reagent T Derivatization

, 2023
RATIONALE: Isomeric separation of prostanoids is often a challenge and requires chromatography and time-consuming sample preparation. Multiple prostanoid isomers have distinct in vivo functions crucial to understand the inflammation process, including ...
Rob J. Vreeken, Hadavi, D, Cooper-Shepherd, D, Vreeken, R J, Ynze Mengerink, Mengerink, Y, Martin Palmer, Maarten Honing, Palmer, M, Jan Jordens, Siegel, T Porta, Bowman, A P, Honing, M, James Langridge, Andrew P. Bowman, Tiffany Porta Siegel, Lamont, L, Darya Hadavi, Lieke Lamont, Ron M. A. Heeren, Dale Cooper‐Shepherd, Langridge, J, Heeren, R M A, Flinders, B, Jordens, J, Bryn Flinders, Vreeken, R J; id_orcid   +26 more
core   +1 more source

Research on Automatic Tuning of Quadurpole Mass Resolution in Quadurpole-Liner Ion Trap Tandem Mass Spectrometry

Zhipu Xuebao
In order to achieve quadrupole mass resolution and precision automatic tuning of a radial excitation mode quadrupole ion trap tandem mass spectrometer, a set of algorithms was developed that can freely set the target peak width at half maximum and ...
Xing-yu ZHAO, Mei-ying LIU, Lu ZHANG, Jie XIE, Zi-yu QU, Di ZHANG, You JIANG, Xiang FANG   +7 more
doaj   +1 more source

Early Body Mass Index z‐Score Change and Resolution of Severe Malnutrition in Children With Sickle Cell Anemia in a Low‐Income Setting: A Prospective Single‐Arm Extension Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell anemia (SCA) in low‐income settings are at risk of severe malnutrition, but optimal nutritional management has not been established. We evaluated an intensified ready‐to‐use therapeutic food (RUTF) regimen in children with persistent severe malnutrition after initial treatment and assessed whether early ...
Safiya Gambo, Shehu Umar Abdullahi, Hassan Adam Murtala, Halima Kabir, Khadija A. Shamsu, Sari A. Acra, Virginia A. Stallings, Mark Rodeghier, Michael R. DeBaun, Lauren J. Klein   +9 more
wiley   +1 more source

From High- to Super-resolution Mass Spectrometry

CHIMIA, 2014
High-resolution mass spectrometry (MS) is indispensable for the molecular-level analysis of biological and environmental samples with great intra- and inter-molecular complexity.
Yury O. Tsybin
doaj   +1 more source

Safety of Daprodustat for the Treatment of Chronic Kidney Disease Anemia: Final Analysis of a Multicenter Postmarketing Surveillance Study in Japan

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction This final analysis of a multicenter, prospective postmarketing surveillance study evaluated the safety of daprodustat in patients with chronic kidney disease anemia in routine clinical practice in Japan. Methods Patients who initiated daprodustat between September 2020 and July 2022 were registered.
Tadao Akizawa, Kyomi Kanaya, Kiyomi Aizawa, Masanori Onoki, Hirofumi Ozeki, Kazuko Suzuki, Ai Hayashi, Tomohiko Asamura   +7 more
wiley   +1 more source

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin, Berrak Itır Aylı, Nüket Paksoy   +2 more
wiley   +1 more source

A patch-based super resolution algorithm for improving image resolution in clinical mass spectrometry

, 2019
Mass spectrometry imaging (MSI) and histology are complementary analytical tools. Integration of the two imaging modalities can enhance the spatial resolution of the MSI beyond its experimental limits.
Heeren, Ron M. A., Smeets, Dirk, Scupakova, Klara, Jain, Saurabh, Terzopoulos, Vasilis   +4 more
core   +1 more source