Results 31 to 40 of about 102,497 (301)

Use of LC-Orbitrap MS and FT-NIRS with multivariate analysis to determine geographic origin of Boston butt pork

open access: yesInternational Journal of Food Properties, 2022
To avoid fraudulent practices, LC-Orbitrap and FT-NIRS combined with multivariate analysis was used to distinguish between 53 Korean and foreign Boston butt samples; forty were used to establish the calibration model and 13 were used as an external ...
Lee Ji Hye   +4 more
doaj   +1 more source

Surface-Induced Dissociation of Noncovalent Protein Complexes in an Extended Mass Range Orbitrap Mass Spectrometer [PDF]

open access: yes, 2018
Herein we demonstrate the first adaptation of surface-induced dissociation in a modified high-mass range, high-resolution Orbitrap mass spectrometer. The SID device was designed to be installed in the Q-Exactive series of Orbitrap mass spectrometers with
Joshua D., Gilbert   +5 more
core   +2 more sources

sj-docx-1-npx-10.1177_1934578X211054955 - Supplemental material for UHPLC-ESI-Orbitrap-HR-MS Analysis of Cyclopeptide Alkaloids From Ziziphus joazeiro

open access: yes, 2021
Supplemental material, sj-docx-1-npx-10.1177_1934578X211054955 for UHPLC-ESI-Orbitrap-HR-MS Analysis of Cyclopeptide Alkaloids From Ziziphus joazeiro by Carlos Henrique Corrêa dos Santos, Mário Geraldo de Carvalho, Annegret Laub, Katrin Franke and Ludger
Annegret Laub (2553532)   +4 more
core   +1 more source

A comparison of five lipid extraction solvent systems for lipidomic studies of human LDL[S]

open access: yesJournal of Lipid Research, 2013
Lipidome profile of fluids and tissues is a growing field as the role of lipids as signaling molecules is increasingly understood, relying on an effective and representative extraction of the lipids present. A number of solvent systems suitable for lipid
Ana Reis   +5 more
doaj   +1 more source

Dynamics of ions of intact proteins in the Orbitrap mass analyzer [PDF]

open access: yesJournal of the American Society for Mass Spectrometry, 2009
While allowing analysis of intact proteins without a theoretical upper mass limit, the Orbitrap mass analyzer demonstrates reduced resolving power as ion mass increases even at a constant mass-to-charge ratio. It is shown that this effect comes from the effects of ion scattering on background gas molecules. The main mechanisms causing decay of acquired
Makarov, Alexander, Denisov, Eduard
openaire   +2 more sources

Isolation, Gastroprotective Effects and Untargeted Metabolomics Analysis of Lycium Minutifolium J. Remy (Solanaceae)

open access: yesFoods, 2020
Lycium minutifolium J. Remy (Solanaceae) is commonly used as an infusion in traditional medicine to treat stomach pain, meteorism, intestinal disorders, stomach ailments, and other severe problems including prostate cancer and stomach cancer.
Stephanie Rodriguez   +9 more
doaj   +1 more source

Immunodepletion Plasma Proteomics by TripleTOF 5600 and Orbitrap Elite/LTQ-Orbitrap Velos/Q Exactive Mass Spectrometers [PDF]

open access: yesJournal of Proteome Research, 2013
Plasma proteomic experiments performed rapidly and economically using several of the latest high-resolution mass spectrometers were compared. Four quantitative hyperfractionated plasma proteomics experiments were analyzed in replicates by two AB SCIEX TripleTOF 5600 and three Thermo Scientific Orbitrap (Elite/LTQ-Orbitrap Velos/Q Exactive) instruments.
Kelly A, Jones   +23 more
openaire   +3 more sources

Rapid Screening of 352 Pesticide Residues in Chrysanthemum Flower by Gas Chromatography Coupled to Quadrupole-Orbitrap Mass Spectrometry with Sin-QuEChERS Nanocolumn Extraction

open access: yesJournal of Analytical Methods in Chemistry, 2022
To analyze pesticide residues, GC coupled with quadrupole-Orbitrap MS (GC-Orbitrap-MS) has become a powerful tool because of its unique characteristics of accurate mass full-spectrum acquisition, high resolution, fast acquisition rates, and overcoming ...
Yuanyuan Wang   +9 more
doaj   +1 more source

Analysis of chemical components of Jianwei Xiaoshi Tablets based on UPLC-Q-Orbitrap-MS technology

open access: yes, 2023
As a compound preparation of traditional Chinese medicine, Jianwei Xiaoshi Tablets (JXT) is made from five Chinese herbs: Taizishen (Pseudostellariae Radix), Chenpi (Citri Reticulatae Pericarpium), Shanyao (Dioscoreae Rhizoma), Maiya (Hordei Fructus ...
Yanyan Xu (571830)   +7 more
core   +1 more source

Fast and Deep Phosphoproteome Analysis with the Orbitrap Astral Mass Spectrometer [PDF]

open access: yesNature Communications, 2023
ABSTRACT Owing to its roles in cellular signal transduction, protein phosphorylation plays critical roles in myriad cell processes. That said, detecting and quantifying protein phosphorylation has remained a challenge. We describe the use of a novel mass spectrometer (Orbitrap Astral) coupled with data-independent acquisition (DIA) to ...
Noah M. Lancaster   +23 more
openaire   +6 more sources

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