Results 1 to 10 of about 71,304 (167)

Evaluation of a Commercial TIMS-Q-TOF Platform for Native Mass Spectrometry. [PDF]

J Am Soc Mass Spectrom
Mass-spectrometry based assays in structural biology studies measure either intact or digested proteins. Typically, different mass spectrometers are dedicated for such measurements: those optimized for rapid analysis of peptides or those designed for high molecular weight analysis. A commercial trapped ion mobility-quadrupole-time of flight (TIMS-Q-TOF)
Panczyk EM, Lin YF, Harvey SR, Snyder DT, Liu FC, Ridgeway ME, Park MA, Bleiholder C, Wysocki VH.   +8 more
europepmc   +3 more sources

UPLC-Q-TOF-MS/MS Analysis of Seco-Sativene Sesquiterpenoids to Detect New and Bioactive Analogues From Plant Pathogen Bipolaris sorokiniana

Frontiers in Microbiology, 2022
Seco-sativene sesquiterpenoids are an important member of phytotoxins and plant growth regulators isolated from a narrow spectrum of fungi. In this report, eight seco-sativene sesquiterpenoids (1–8) were first analyzed using the UPLC-Q-TOF-MS/MS ...
Yan-Duo Wang, Jian Yang, Qi Li, Yuan-Yuan Li, Xiang-Mei Tan, Si-Yang Yao, Shu-Bin Niu, Hui Deng, Lan-Ping Guo, Gang Ding   +9 more
doaj   +1 more source

Accurate Identification of Degraded Products of Aflatoxin B1 Under UV Irradiation Based on UPLC-Q-TOF-MS/MS and NMR Analysis

Frontiers in Chemistry, 2021
Analysis, purification, and characterization of AFB1 degraded products are vital steps for elucidation of the photocatalytic mechanism. In this report, the UPLC-Q-TOF-MS/MS technique was first coupled with purification and NMR spectral approaches to ...
Yan-Duo Wang, Cheng-Gang Song, Jian Yang, Tao Zhou, Yu-Yang Zhao, Jian-Chun Qin, Lan-Ping Guo, Gang Ding   +7 more
doaj   +1 more source

The ToF-ACSM: a portable aerosol chemical speciation monitor with TOFMS detection [PDF]

Atmospheric Measurement Techniques, 2013
We present a new instrument for monitoring aerosol composition, the time-of-flight aerosol chemical speciation monitor (ToF-ACSM), combining precision state-of-the-art time-of-flight mass spectrometry with stability, reliability, and easy ...
R. Fröhlich, M. J. Cubison, J. G. Slowik, N. Bukowiecki, A. S. H. Prévôt, U. Baltensperger, J. Schneider, J. R. Kimmel, M. Gonin, U. Rohner, D. R. Worsnop, J. T. Jayne   +11 more
doaj   +1 more source

Determination of Oxprenolol, Methandienone and Testosterone in Meat Samples by UHPLC-Q-ToF

SSRN Electronic Journal, 2022
The presence of some drugs in meat samples can cause threat to human health, therefore, its analysis is highly desirable for food safety purposes. In this work, a solid-phase extraction procedure for the determination of oxprenolol, a non-selective beta-blocker, and such anabolic agents as methandienone and testosterone in beef meat samples has been ...
A. Temerdashev, E. Dmitrieva, A. Azaryan, E. Gashimova   +3 more
openaire   +3 more sources

Metabonomics Study of Intestinal Fistulas Based on Ultraperformance Liquid Chromatography Coupled with Q-TOF Mass Spectrometry (UPLC/Q-TOF MS) [PDF]

Journal of Proteome Research, 2006
Ultraperformance liquid chromatography coupled with Q-TOF mass spectrometry (UPLC/Q-TOF MS) is an effective and sensitive analytical tool. A UPLC/Q-TOF MS-based metabonomics technique was employed to investigate sera from 40 patients with intestinal fistula and 17 healthy volunteers in an effort to find potential biomarkers of the disease and reveal ...
Peiyuan, Yin, Xinjie, Zhao, Qiurong, Li, Jiangshan, Wang, Jieshou, Li, Guowang, Xu   +5 more
openaire   +2 more sources

Meeting News: Q-TOF tackles virus [PDF]

Analytical Chemistry, 2000
15th International Mass Spectrometry Conference—Britt Erickson and Alan Newman report from Barcelona, Spain.
Britt Erickson, Alan Newman
openaire   +1 more source

High precision mass measurements for wine metabolomics

Frontiers in Chemistry, 2014
An overview of the critical steps for the non-targeted Ultra-High Performance Liquid Chromatography coupled with Quadrupole Time-of-Flight Mass Spectrometry (UPLC-Q-ToF-MS) analysis of wine chemistry is given, ranging from the study design, data ...
Chloé eRoullier-Gall, Chloé eRoullier-Gall, Michael eWitting, Régis D. Gougeon, Philippe eSchmitt-Kopplin, Philippe eSchmitt-Kopplin   +5 more
doaj   +1 more source

Quantification of sterol lipids in plants by quadrupole time-of-flight mass spectrometry

Journal of Lipid Research, 2011
Glycerolipids, sphingolipids, and sterol lipids constitute the major lipid classes in plants. Sterol lipids are composed of free and conjugated sterols, i.e., sterol esters, sterol glycosides, and acylated sterol glycosides.
Vera Wewer, Isabel Dombrink, Katharina vom Dorp, Peter Dörmann   +3 more
doaj   +1 more source

The antiviral activity of Thuja orientalis folium against Influenza A virus

Virus Research, 2023
Thuja orientalis Folium (TOF) has been prescribed traditionally as an expectorant for inflammatory airway disease. In this study, we evaluated the anti-influenza A virus (IAV) activity of TOF by detecting GFP expressed by influenza A virus (A/PR/8/34-GFP)
Myong-Min Lee, Won-Kyung Cho, Min Ho Cha, Nam-Hui Yim, Hye Jin Yang, Jin Yeul Ma   +5 more
doaj   +1 more source