Results 11 to 20 of about 219,369 (310)

Design of Bipolar Mass Analyzer in Miniaturized Single Particle Aerosol Mass Spectrometry [PDF]

Zhipu Xuebao, 2023
Biological aerosols are a special type of aerosols in the atmosphere, which have carcinogenic and teratogenic properties. Real-time detection and identification of biological aerosols is the prerequisite for biological warning and forecasting. The design
ZHU Hao1, DU Xu-bing1, SU Zhan-min2, CHEN Jian-song2, LU Han-lun1, HUANG Zheng-xu1, ZHOU Zhen1, LI Lei1   +7 more
doaj   +1 more source

Position-sensitive ion detection in precision Penning trap mass spectrometry [PDF]

, 2009
A commercial, position-sensitive ion detector was used for the first time for the time-of-flight ion-cyclotron resonance detection technique in Penning trap mass spectrometry.
A. Czasch, Blaum, Blaum, Blaum, Block, Bollen, Bollen, Bollen, Brown, Brown, C. Smorra, D. Rodríguez, Dahl, G. Eitel, Gabrielse, George, Gräff, Hager, Hofmann, J. Ketelaer, J. Ketter, Jagutzki, Jagutzki, K. Blaum, Kellerbauer, Kellerbauer, Ketelaer, Kirchner, Kretzschmar, König, Lampton, M. Block, M. Dworschak, Münzenberg, O. Jagutzki, Rauth, Ryjkov, S. George, Savard, Savard, Straub, Sz. Nagy, Wiza, Yazidjian   +43 more
core   +2 more sources

Monoacylglycerol Analysis Using MS/MSALL Quadruple Time of Flight Mass Spectrometry

Metabolites, 2016
Monoacylglycerols (MAGs) are structural and bioactive metabolites critical for biological function. Development of facile tools for measuring MAG are essential to understand its role in different diseases and various pathways.
Fei Gao, Justice McDaniel, Emily Y. Chen, Hannah Rockwell, Matthew D. Lynes, Yu-Hua Tseng, Rangaprasad Sarangarajan, Niven R. Narain, Michael A. Kiebish   +8 more
doaj   +1 more source

Bacteremia caused by Enterobacter asburiae misidentified biochemically as Cronobacter sakazakii and accurately identified by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry: a case report

Journal of Medical Case Reports, 2022
Background Biochemical analyses of causative bacteria do not always result in clear identification, and new technologies aimed at improving diagnostic accuracy continue to be developed.
Noboru Horinouchi, Seiji Shiota, Takeshi Takakura, Atsushi Yoshida, Ken Kikuchi, Akira Nishizono, Eishi Miyazaki   +6 more
doaj   +1 more source

Characterization and Quantification of Isoprene-Derived Epoxydiols in Ambient Aerosol in the Southeastern United States [PDF]

, 2010
Isoprene-derived epoxydiols (IEPOX) are identified in ambient aerosol samples for the first time, together with other previously identified isoprene tracers (i.e., 2-methyltetrols, 2-methylglyceric acid, C5-alkenetriols, and organosulfate derivatives of ...
Chan, Man Nin, Claeys, Magda, Eddingsaas, Nathan C., Edgerton, Eric S., Knipping, Eladio M., Seinfeld, John H., Shaw, Stephanie L., Surratt, Jason D., Tanner, Roger L., Wennberg, Paul O., Zheng, Mei   +10 more
core   +2 more sources

Spatiotemporal lipid profiling during early embryo development of Xenopus laevis using dynamic ToF-SIMS imaging

Journal of Lipid Research, 2014
Time-of-flight secondary ion mass spectrometry (ToF-SIMS) imaging has been used for the direct analysis of single intact Xenopus laevis embryo surfaces, locating multiple lipids during fertilization and the early embryo development stages with ...
Hua Tian, John S. Fletcher, Raphael Thuret, Alex Henderson, Nancy Papalopulu, John C. Vickerman, Nicholas P. Lockyer   +6 more
doaj   +1 more source

Systematic discrimination of heptane isomers with femtosecond laser linear time of flight mass spectrometry

Cumhuriyet Science Journal, 2021
The dissociative ionization processes of heptane molecule with nine isomers have been investigated and presented experimentally in detail by courtesy of femtosecond laser mass spectrometry technique with a fundamental wavelength of 800 nm and 90 fs pulse
Hamdi Şükür Kılıç, Mehmet Taşer, Yasemin Gündoğdu   +2 more
doaj   +1 more source

Advances in quantitative hepcidin measurements by time-of-flight mass spectrometry.

PLoS ONE, 2008
Assays for the detection of the iron regulatory hormone hepcidin in plasma or urine have not yet been widely available, whereas quantitative comparisons between hepcidin levels in these different matrices were thus far even impossible due to technical ...
Dorine W Swinkels, Domenico Girelli, Coby Laarakkers, Joyce Kroot, Natascia Campostrini, Erwin H J M Kemna, Harold Tjalsma   +6 more
doaj   +1 more source

236U accelerator mass spectrometry with a time-of-flight and energy detection system

Nuclear Engineering and Technology, 2022
A time-of-flight and energy (TOF-E) detection system for the measurement of 236U accelerator mass spectrometry (AMS) has been developed to improve the 236U/238U sensitivity at Micro Analysis Laboratory, Tandem accelerator (MALT), The University of Tokyo.
Li Zheng, Hiroyuki Matsuzaki, Takeyasu Yamagata   +2 more
doaj   +1 more source

Rapid spilled oil analysis using direct analysis in real time time-of-flight mass spectrometry

Environmental Systems Research, 2023
Background The biomarker diagnostic ratio analysis outlined by the European Committee for Standardization is considered the current gold standard in oil forensic analysis.
Krishnaja Tikkisetty, Paige McCallum, Taylor Filewood, Jeffrey Yan, Honoria Kwok, Pamela Brunswick, Robert Cody, Dayue Shang   +7 more
doaj   +1 more source