Results 41 to 50 of about 313,222 (315)

Enhanced LC-ESI-MS/MS Sensitivity by Cationic Derivatization of Organophosphorus Acids

Molecules, 2023
The chemical derivatization to enhance the signal intensity and signal-to-noise (S/N) of several organophosphorus (OP) acids in liquid chromatography tandem mass spectrometry (LC-ESI-MS/MS) is illustrated.
Tamar Shamai Yamin, Moran Madmon, Ariel Hindi, Avital Shifrovich, Hagit Prihed, Merav Blanca, Avi Weissberg   +6 more
doaj   +1 more source

Characterization of Fumonisin A-Series by High-Resolution Liquid Chromatography-Orbitrap Mass Spectrometry

Toxins, 2014
Fumonisin A-series (FAs) in a reference material of corn sample that was naturally contaminated with fumonisins was characterized using high-resolution liquid chromatography-Orbitrap mass spectrometry (LC-Orbitap MS).
Masayoshi Tamura, Naoki Mochizuki, Yasushi Nagatomi, Akira Toriba, Kazuichi Hayakawa   +4 more
doaj   +1 more source

Flavonoids contribute most to discriminating aged Guang Chenpi (Citrus reticulata ‘Chachi’) by spectrum‐effect relationship analysis between LC‐Q‐Orbitrap/MS fingerprint and ameliorating spleen deficiency activity

Food Science & Nutrition, 2023
To further explore the mechanism of “the longer storage time, the better bioactivity” of aged Guang Chenpi, the dry pericarp of Citrus reticulata ‘Chachi’ (CRC), a series of activity assessments were performed on spleen deficiency mice.
Xiaoming Sun, Haidan Deng, Baojun Shan, Yunqi Shan, Jiaying Huang, Xin Feng, Xiaomin Tang, Yuewei Ge, Peiran Liao, Quan Yang   +9 more
semanticscholar   +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

LC-MS/MS data

, 2022
LC-MS/MS data - protein identification of the IgG-based final product from the COVID-19 convalescent plasma downstream ...
Tihana Kurtović (12301148)
core   +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

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

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

Datasets from label-free quantitative proteomic analysis of human glomeruli with sclerotic lesions

Data in Brief, 2015
Human glomeruli with intermediate (i-GS) and advanced (GS) sclerotic lesions as well as the normal control (Nor) were captured from laser microdissection, digested by trypsin and subjected to shotgun LC-MS/MS analysis (LTQ-Orbitrap XL).
Ying Zhang, Bo Xu, Naohiko Kinoshita, Yutaka Yoshida, Masayuki Tasaki, Hidehiko Fujinaka, Sameh Magdeldin, Eishin Yaoita, Tadashi Yamamoto   +8 more
doaj   +1 more source

Apex Peptide Elution Chain Selection: A New Strategy for Selecting Precursors in 2D-LC-MALDI-TOF/TOF Experiments on Complex Biological Samples [PDF]

, 2010
LC-MALDI provides an often overlooked opportunity to exploit the separation between LC-MS and MS/MS stages of a 2D-LC-MS-based proteomics experiment, that is, by making a smarter selection for precursor fragmentation. Apex Peptide Elution Chain Selection
Poolman, Bert,, Breitling, Rainer, Permentier, Hjalmar P.,, Gandhi, Tejas, Breitling, Rainer,, Rainer Breitling, Gandhi, Tejas,, Permentier, Hjalmar P., Bert Poolman, Wiederhold, Elena,, Fabrizia Fusetti, Poolman, Bert, Wiederhold, Elena, Permentier, Hjalmar P.; id_orcid, Hjalmar P. Permentier, Fusetti, Fabrizia,, Fusetti, Fabrizia, Tejas Gandhi, Elena Wiederhold   +18 more
core   +1 more source