Results 1 to 10 of about 439,410 (213)

Quantification of hydroxyacetone and glycolaldehyde using chemical ionization mass spectrometry [PDF]

Atmospheric Chemistry and Physics, 2014
Chemical ionization mass spectrometry (CIMS) enables online, rapid, in situ detection and quantification of hydroxyacetone and glycolaldehyde. Two different CIMS approaches are demonstrated employing the strengths of single quadrupole mass spectrometry ...
J. M. St. Clair, K. M. Spencer, M. R. Beaver, J. D. Crounse, F. Paulot, P. O. Wennberg   +5 more
doaj   +4 more sources

Comparison of liquid chromatography-high-resolution tandem mass spectrometry (MS2) and multi-stage mass spectrometry (MS3) for screening toxic natural products

Journal of Mass Spectrometry and Advances in the Clinical Lab, 2023
Background: Liquid chromatography-high-resolution mass spectrometry (LC-HR-MS) has emerged as a powerful analytical technology for compound screening in clinical toxicology.
Ruben Yiqi Luo, Kate Comstock, Caroline Ding, Alan H.B. Wu, Kara L. Lynch   +4 more
doaj   +2 more sources

Research Progress on Disulfide Bond Assignment Analysis Based on Mass Spectrometry [PDF]

Zhipu Xuebao, 2021
Disulfide bond in protein is an important post translational modification and it is extremely essential for stabilizing the three dimensional structure of proteins, maintaining the correct folded conformation and regulating their biological activities ...
LI Ming, WU Pei-ze
doaj   +1 more source

Semi-automated serum steroid profiling with tandem mass spectrometry

Journal of Mass Spectrometry and Advances in the Clinical Lab, 2023
Objectives: Highly selective and sensitive multi-analyte methods for the analysis of steroids are attractive for the diagnosis of endocrine diseases. Commercially available kits are increasingly used for this purpose.
Sophie Rakete, Tom Schubert, Michael Vogeser   +2 more
doaj   +1 more source

Progressive search in tandem mass spectrometry

BMC Bioinformatics, 2023
Background High-throughput Proteomics has been accelerated by (tandem) mass spectrometry. However, the slow speed of mass spectra analysis prevents the analysis results from being up-to-date.
Yoonsung Joh, Kangbae Lee, Hyunwoo Kim, Heejin Park   +3 more
doaj   +1 more source

Ocrelizumab quantitation by liquid chromatography-tandem mass spectrometry

Journal of Mass Spectrometry and Advances in the Clinical Lab, 2022
Introduction: Ocrelizumab is a monoclonal anti-CD20 antibody approved for the treatment of multiple sclerosis (MS). The clinical value of therapeutic drug monitoring (TDM) for this antibody in treatment of MS is unknown, and an adequately specific and ...
Erik I. Hallin, Trond Trætteberg Serkland, Kjell-Morten Myhr, Øivind Torkildsen, Silje Skrede   +4 more
doaj   +1 more source

Simultaneous Method for Selected PBDEs and HBCDDs in Foodstuffs Using Gas Chromatography—Tandem Mass Spectrometry and Liquid Chromatography—Tandem Mass Spectrometry

Toxics, 2022
Flame retardants are added to consumer products to retard the ignition of combustible materials. Technical mixtures of polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecane (HBCDD) were massively used for several decades.
Eva Lipičar, Danijela Fras, Nino Javernik, Helena Prosen   +3 more
doaj   +1 more source

Applications of Tandem Mass Spectrometry (MS/MS) in Protein Analysis for Biomedical Research

Molecules, 2022
Mass Spectrometry (MS) allows the analysis of proteins and peptides through a variety of methods, such as Electrospray Ionization-Mass Spectrometry (ESI-MS) or Matrix-Assisted Laser Desorption Ionization-Mass Spectrometry (MALDI-MS).
Anca-Narcisa Neagu, Madhuri Jayathirtha, Emma Baxter, Mary Donnelly, Brindusa Alina Petre, Costel C. Darie   +5 more
doaj   +1 more source

Correlating Mass Spectrometry Imaging and Liquid Chromatography-Tandem Mass Spectrometry for Tissue-Based Pharmacokinetic Studies

Metabolites, 2022
Liquid chromatography-tandem mass spectrometry (LC-MS/MS) is a standard tool used for absolute quantification of drugs in pharmacokinetic (PK) studies.
Andreas Dannhorn, Emine Kazanc, Gregory Hamm, John G. Swales, Nicole Strittmatter, Gareth Maglennon, Richard J. A. Goodwin, Zoltan Takats   +7 more
doaj   +1 more source

Lipid Peroxidation in Algae Oil: Antagonist Effects of Natural Antioxidants

Molecules, 2022
Tandem mass spectrometry is proposed to check lipid oxidation, a free radical-mediated phenomenon which effects oxidative deterioration in polyunsaturated fatty acids. Antioxidants are used by the food industry to delay the oxidation process.
Ilaria Santoro, Anna Russo, Enzo Perri, Giovanni Sindona, Monica Nardi   +4 more
doaj   +1 more source