Results 31 to 40 of about 1,841,050 (150)

PFAS residue analysis in fish and fish feed by applying a modified QuEChERS method in combination with LC-HRMS detection

Emerging Contaminants
A targeted method for the quantitative determination of PFAS residues in fish feed and marine aquaculture fish species was developed and validated in the current study.
Ourania Koloka, Vasiliki Boti, Dimitra Hela, Triantafyllos Albanis, Ioannis Konstantinou   +4 more
doaj   +1 more source

Systematic Profiling of the Multicomponents and Authentication of Erzhi Pill by UHPLC/Q-Orbitrap-MS Oriented Rapid Polarity-Switching Data-Dependent Acquisition and Selective Monitoring of the Chemical Markers Deduced from Fingerprint Analysis

Molecules, 2018
The analytical platform UHPLC/Q-Orbitrap-MS offers a solution to quality investigation of TCM with high definiteness. Using Erzhi Pill (EZP) as a case, we developed UHPLC/Q-Orbitrap-MS based approaches to achieve systematic multicomponent identification ...
Li Jia, Lingling Fu, Xiaoyan Wang, Wenzhi Yang, Hongda Wang, Tiantian Zuo, Chunxia Zhang, Ying Hu, Xiumei Gao, Lifeng Han   +9 more
doaj   +1 more source

Proteins interacting with DmHsp22 by orbitrap fusion LC-MS/MS mass spectrometer.

, 2018
Proteins interacting with DmHsp22 by orbitrap fusion LC-MS/MS mass spectrometer.
Nicolas Pichaud (3258165), Robert M. Tanguay (251667), Etienne Hebert Chatelain (4915630), Geneviève Morrow (3126870), Yasmine Ould Amer (4915624), Afrooz Dabbaghizadeh (4915627)   +5 more
core   +1 more source

High Resolution GC-Orbitrap-MS Metabolomics Using Both Electron Ionization and Chemical Ionization for Analysis of Human Plasma

, 2020
Gas chromatography–mass spectrometry (GC-MS) platforms are typically run in electron ionization (EI) mode for mass spectral matching and metabolite annotation.
Biswapriya B. Misra (6715544), Michael Olivier (200267)   +1 more
core   +2 more sources

High-Throughput Screening and Confirmation of 22 Banned Veterinary Drugs in Feedstuffs Using LC-MS/MS and High-Resolution Orbitrap Mass Spectrometry

, 2016
A new analytical strategy based on liquid chromatography–tandem mass spectrometry (LC-MS/MS) combined with accurate mass high-resolution Orbitrap mass spectrometry (HR-Orbitrap MS) was performed for high-throughput screening, confirmation, and ...
Xufeng Wang (1858264), Yijuan Su (1858276), Jianwen Yang (1858270), Li-Min He (1858279), Zongnan Wang (1858273), Yanghong Liu (1858261), Kui Bian (1858267)   +6 more
core   +2 more sources

High Resolution Mass Spectrometry Fragmentation Rules of Etomidate and Its Structural Analogues

Fayixue Zazhi
ObjectiveTo explore the characteristic fragment ions, ion abundance ratios and mass spectrometry fragmentation rules of etomidate and its structural analogues by using gas chromatography-quadrupole/orbitrap mass spectrometry （GC-Q/Orbitrap MS） and liquid
FAN Xian-yu, ZHU Xue-yan, WANG Xin, XIANG Ping, ZHAO Jun-bo   +4 more
doaj   +1 more source

Metabolic profile of naringenin in the stomach and colon using liquid chromatography/electrospray ionization linear ion trap quadrupole-Orbitrap-mass spectrometry (LC-ESI-LTQ-Orbitrap-MS) and LC-ESI-MS/MS

, 2016
International audienceSeveral biological activities (antioxidant, anti-inflammatory, anticarcinogenic) are attributed to naringenin (NAR)-a predominant flavonoid of citrus fruit and tomato despite its low bioavailability after ingestion.
Orrego-Lagaron, Naiara, Vallverdú-Queralt, Anna, Martinez-Huelamo, Miriam, Escribano-Ferrer, Elvira, Lamuela-Raventos, Rosa M.   +4 more
core   +1 more source

LC-API/MS in Drug Metabolism and Pharmacokinetic Studies [PDF]

The use of API interfaces with quadrupole mass spectrometers has been shown to give rise to good sensitivity, selectivity, and robustness for the interfacing of LC to MS. Since their introduction in the 1990s the technique has rapidly become widespread,
Imrie, G A
core   +5 more sources

MS2CNN: predicting MS/MS spectrum based on protein sequence using deep convolutional neural networks

BMC Genomics, 2019
Background Tandem mass spectrometry allows biologists to identify and quantify protein samples in the form of digested peptide sequences. When performing peptide identification, spectral library search is more sensitive than traditional database search ...
Yang-Ming Lin, Ching-Tai Chen, Jia-Ming Chang   +2 more
doaj   +1 more source

Determination of arsenobetaine in fish tissue by species specific isotope dilution LC-LTQ-Orbitrap-MS and standard addition lc-icpms

, 2011
An accurate and precise method for the determination of arsenobetaine (AsB, (CH3)3 +AsCH2COO-) in fish samples using exact matching species specific isotope dilution (ID) liquid chromatography LTQ-Orbitrap mass spectrometry (LC-LTQ-Orbitrap-MS) and ...
McCooeye, M., Sezgin Bakirdere, Yang, Lu, Ding, J., Bakirdere, S., Willie, S., Mester, Z., Anthony Windust, Yang, L., Windust, A., Willie, Scott, Bakirdere, Sezgin, Windust, Anthony, McCooeye, Margaret, Lu Yang, Sezgin Bakırdere, Margaret McCooeye, Maxwell, P., Paulette Maxwell, Mester, Zoltan, Ding, Jianfu, Ouerdane, L., Ouerdane, Laurent, Scott Willie, Zoltán Mester, Maxwell, Paulette, Laurent Ouerdane, Jianfu Ding   +27 more
core   +1 more source