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601
Chemical composition and larvicidal activity of the essential oil of Tagetes minuta Linnaeus from the southern Brazilian highlands
Published 2025-01-01“…The chemical composition was determined using gas chromatography coupled with mass spectrometry (GC-MS). The EO extraction yield was 4.9%, and the major compounds (Z)-tagetone, (Z)-β-ocimene, and dihydrotagetone were identified. …”
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602
Synthesis Characterization and Biological Activities of Coordination Compounds of 4-Hydroxy-3-nitro-2H-chromen-2-one and Its Aminoethanoic Acid and Pyrrolidine-2-carboxylic Acid Mi...
Published 2017-01-01“…The compounds formed were characterized using infrared, Uv-vis spectrophotometric analyses, mass spectrometry, magnetic susceptibility measurements, and EDX analyses. …”
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603
Authentication of Processed Epimedii folium by EA-IRMS
Published 2020-01-01“…Elemental analyzer coupled with isotopic ratio mass spectrometry (EA-IRMS) was applied to determine the δ13C values of the cyclohexane extracts of those samples. …”
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604
Diagnosis of Methyl Malonicaciduria from 2013 to 2018
Published 2020-02-01“…The identification of methylmalonic acid was performed by gas chromatography / mass spectrometry, while the homocysteine quantification by high performance liquid chromatography. …”
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605
Detection and Analytical Capabilities for Trace Level of Carbon in High-Purity Metals by Laser-Induced Breakdown Spectroscopy with a Frequency Quintupled 213 nm Nd:YAG Laser
Published 2017-01-01“…From these results, the frequency quintupled 213 nm Nd:YAG laser, which was adopted widely as a commercial laser ablation (LA) system coupled with inductively coupled plasma mass spectrometry (ICPMS) for trace element analysis in solid materials, could be used for C analysis to achieve simultaneous measurements for both C and trace elements in metals by LIBS and LA-ICPMS, respectively.…”
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606
High Levels of Perfluorooctane Sulfonate in Children at the Onset of Diabetes
Published 2015-01-01“…Perfluorinated compounds were measured using high performance liquid chromatography with electrospray ionization tandem mass spectrometry. Nonparametric statistical analysis was performed. …”
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607
Pulse protein quality and derived bioactive peptides
Published 2025-02-01“…Additionally, the use of proteomics platforms, such as mass spectrometry, in combination with bioinformatics tools, enables the identification and characterization of bioactive peptides in pulse crops. …”
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608
Low-temperature biodegradation of freshwater dissolved organic matter during winter-to-spring transition
Published 2025-02-01“…Despite limited degradation of colored and fluorescent DOM (CDOM and FDOM, respectively), 84% of the mass-to-charge (m/z) peaks detected using positive ion mass spectrometry were lost in winter DOM after 28-day incubation. …”
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609
Characteristics and microscopic mechanisms of smoke emissions of OMMT/SBS-modified asphalt
Published 2025-01-01“…Pyrolysis gas chromatography–mass spectrometry (PY-GC–MS), fluorescence microscopy (FM), thermogravimetric analysis (TG), and gel permeation chromatography (GPC) were used to explore the characteristics and microscopic mechanisms of flue gas emissions. …”
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610
Spectrophotometric Determination of Cr(III) and Pb(II) Using Their Complexes with 5,11,17,23-Tetra[(2-ethyl acetoethoxyphenyl)(azo)phenyl]calix[4]arene
Published 2015-01-01“…The results for several analyzed samples were found to be in satisfied agreement with those acquired by using the inductively coupled plasma mass spectrometry (ICP-MS) technique.…”
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611
Metabolomic Analysis of the Chemical Composition of Chongjue Luohan Tea
Published 2025-02-01“…To elucidate the chemical material basis of the flavor quality of Chongjue Luohan tea, four representative tea samples (Zifu, Ankang, Ping’an and Jufu teas) were analyzed by sensory evaluation and metabolomics based on ultra-high performance liquid chromatography-quadrupole-mass spectrometry (UPLC-Q-MS). The results showed that Luohan tea contained higher levels of tea polyphenols, ranging from 13.7% to 18.1%, than traditional black tea (9.6%). …”
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612
Urinary bacteriophage cooperation with bacterial pathogens during human urinary tract infections supports lysogenic phage therapy
Published 2025-02-01“…Using human urine, model organisms, mass spectrometry, gene expression analysis, and the phage phenotype prediction model BACPHLIP, the results corroborated our hypotheses at the functional protein and gene levels. …”
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613
Direct detection and identification of viruses in saliva using a SpecID ionization modified mass spectrometer.
Published 2025-01-01“…The main goal of this study was to demonstrate that our previously developed, portable, mass spectrometry based method, SpecID, could also be sued for detecting viruses in saliva, including but not limited to SARS-CoV-2; the SpecID method has the potential to provide a reliable solution that overcomes some of the challenges with molecular testing like PCR.…”
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614
Molecular networking-assisted flavonoid profile of Gypsophila glomerata extract in relation to its protective effects on carbon tetrachloride-induced hepatorenal damage in rats
Published 2022-03-01“…Twenty-two flavonoid C-, O- and C,O--glycosides in EGG were annotated by mass spectrometry--based molecular networking; nine of them are reported in this species for the first time. …”
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615
Correlation of Volatile Compounds and Sensory Attributes of Chinese Traditional Sweet Fermented Flour Pastes Using Hierarchical Cluster Analysis and Partial Least Squares-Discrimin...
Published 2017-01-01“…Ninety-six volatile compounds were detected using solid-phase microextraction gas chromatography mass spectrometry. Hierarchical cluster analysis grouped SFFPs into three clusters according to their concentrations and compositions of volatile components. …”
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616
LC-MS/MS Method for Determination of Hydroxychloroquine and Metabolites: Application in a Pharmacokinetic Study
Published 2022-01-01“…We developed and validated a simple and sensitive ultrahigh performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method for simultaneous quantitation of HCQ and its three metabolites in rat blood, and reported their pharmacokinetic parameters. …”
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617
Application of quantitative protein mass spectrometric data in the early predictive analysis of membrane-bound target engagement by monoclonal antibodies
Published 2024-12-01“…In the case of monoclonal antibodies (mAbs) against cell membrane antigens, this requires quantitative insight into the target tissue concentration levels. Protein mass spectrometry data are often available but the values are expressed in relative, rather than in molar concentration units that are easier to incorporate into pharmacokinetic models. …”
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618
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619
Lipid Antigens: Revealing the Hidden Players in Adaptive Immune Responses
Published 2025-01-01“…Recent advances in mass spectrometry, imaging techniques, and lipidomics have revolutionized the identification and characterization of lipid antigens and enhanced our understanding of their structural diversity and functional significance. …”
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620
The Pyrolytic Profile of Lyophilized and Deep-Frozen Compact Part of the Human Bone
Published 2012-01-01“…Samples of preserved bone tissue were subjected to thermolysis and tetrahydroammonium-hydroxide- (TMAH-) associated thermochemolysis coupled with gas chromatography and mass spectrometry (Py-GC/MS). Results. Derivatives of benzene, pyridine, pyrrole, phenol, sulfur compounds, nitriles, saturated and unsaturated aliphatic hydrocarbons, and fatty acids (C12–C20) were identified in the pyrolytic pattern. …”
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