OOIR: Observatory of International Research

Papers

(The TQCC of Rapid Communications in Mass Spectrometry is 4. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-06-01 to 2026-06-01.)

Article	Citations
	32
Benzylic rearrangement for urinary analysis of guanidino and ureido compounds in cardiac surgery–associated acute kidney injury using high‐performance liquid chromatography–tandem mass spectrometry	31
Issue Information	24
Miniature mass spectrometer signal processing based on ensemble empirical mode decomposition feature enhancement	20
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Identification of multiple plasma lipids as diagnostic biomarkers of hypercholesterolemia and the underlying mechanisms based on pseudo‐targeted lipidomics	17
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Unusual modifications of protein biomarkers expressed by plasmid, prophage, and bacterial host of pathogenic Escherichia coli	16
APCI‐Multistage Mass Spectrometry Following Liquid Chromatography for Selected 4‐Desmethyl‐Sterols and Their Deuterium‐Labelled Analogues Unveils Characteristic Fragmentation Routes for Cholesterol an	15
The influence of biopsy site and pregnancy on stable isotope ratios in humpback whale skin	15
Establishment of high‐performance liquid chromatography‐photodiode array method for 43 weight loss agents and effect of basic environment on bisacodyl degradation	15
A new method for phosphate purification for oxygen isotope ratio analysis in freshwater and soil extracts using solid‐phase extraction with zirconium‐loaded resin	15
Matrix‐free laser desorption/ionization mass spectrometry imaging for rapid evaluation of wood biomass conversion	14
Identification of degradation products of brivaracetam using liquid chromatography quadrupole time‐of‐flight tandem mass spectrometry: Degradation pathway elucidation	14
4‐Mercaptobenzoic acid‐assisted laser desorption/ionization mass spectrometry for sensitive quantification of cesium and strontium in drinking water	14
Assessing the performance of international laboratories analysing the stable isotope composition ( δ ¹⁵ N,	14
Dissection of schistosome tissues under LC–MS compatible preservative conditions for quantitative proteomics	13
Hydrophilic, dual amino acid–functionalized zinc sulfide quantum dot for specific identification of N ‐glycopeptides from biological samples	13
Carbon allocation in cassava is affected by water deficit and potassium application – A ¹³ C‐CO ₂	13
Investigation of the laser fluence and wavelength dependence in surface‐assisted laser desorption/ionization mass spectrometry using gold nanoparticles	13
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Determination and gas‐phase stability evaluation of metal complexes by nanoelectrospray ionization and collision‐induced dissociation tandem mass spectrometry	12
An extensive screening method for the identification and quantitation of ecdysteroids in equine urine and plasma using liquid chromatography coupled with mass spectrometry	12
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Ecological Insights Into the Extinct Korean Sea Lion ( Zalophus japonicus ) in Korea Based on Stab	12

Identification of active ingredients in Naomaitai capsules using high‐resolution mass spectrometry unite molecular network analysis and prediction of their action mechanisms	12
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A Novel Approach for Rapid Screening of Stilbenes in Plant Extracts Based on SALDI Mass Spectrometry	12
Transcriptomic and Metabolomic Mechanism of Ibuprofen, Chondroitin Sulfate, and Vitamins With Minerals Tablets (21) for Kashin–Beck Disease Treatment	12
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Covalent organic framework film–based laser desorption/ionization mass spectrometry for rapid and sensitive quantification of homocysteine in human serum	11
An Efficient Solid Phase Extraction Method for Purification and Analysis of Compound‐Specific Plant Sugar Stable Hydrogen Isotope Values	11
Method optimization of the simultaneous detection of B ₁₂ congeners leading to the detection of a novel isomer of hydroxycobalamin in seawater	11
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Native mass spectrometry interrogation of complexes formed during targeted protein degradation	11
Gas chromatography/mass spectrometry analysis of reaction products of Chemical Weapons Convention–related 2‐( N , N	11
A new phosphate purification method for igneous weathering profiles	11
Guided analysis of ambient ionization mass spectrometry data with the MQ Assistant	11
ESI–MS/MS Characterisation of Phenolic Reaction Products of Nitrogen Mustards and N , N ‐Dialkylaminoethyl	11
Fully resolved high‐precision measurement of ³⁶ S for sulfur reference materials	11
Inadequate definition of the limit of quantification used for the analysis of perfluoroalkyl substances in food by liquid chromatography–tandem mass spectrometry may compromise the reliability of the	10
Chemical composition analysis of Qingyan dropping pills using ultra‐high‐performance liquid chromatography‐quadrupole time‐of‐flight mass spectrometry	10
Examination of amino acid hydrogen isotope measurements of scalp hair for region‐of‐origin studies	10
Different reactivities of H ₃ O ⁺ (H ₂ O)	10
Identification of the Chemical Constituents in Viticis Fructus From Different Regions by UPLC‐QTOF‐MS Combined With Multivariate Statistical Analyses	10
Effect of formic acid treatment on carbon and nitrogen stable isotope ratios in sperm whale teeth dentine	10
Wavelength Dependence of fs Laser Ablation Ionisation Mass Spectrometry: a Dedicated Study on NIST SRM 664	10
A modified laser ablation‐isotope ratio mass spectrometry method for in situ analysis of sulfur isotope composition of sulfides	10
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Analytical method development, identification, and characterization of stress degradation products of idelalisib by ultrahigh‐performance liquid chromatography with photodiode array and ultrahigh‐perf	10
Tandem mass tagging combined with liquid chromatography–tandem mass spectrometry technique to detect protein markers in gastroesophageal junction adenocarcinoma	9
Detection of Microbiological Contamination and Malfunctions in Technical Equipment Used in the Milk Processing Industry Using Acyl‐Homoserine Lactones With Liquid Chromatography/Triple Quadrupole Mass	9
Multi‐Plug Filtration Purification Combined With Gas Chromatography–Tandem Mass Spectrometry for the Detection of 107 Pesticides in Livestock and Poultry Meat	9
A Sustainable UHPLC‐PDA/QTOF‐MS Approach for Comprehensive Profiling of Amoxicillin Degradation Impurities	9
Precision Chemotherapy: Optimizing Calibration for Rapid Determination of Blood Methotrexate by Tandem Mass Spectrometry ± Liquid Chromatography	9
Development of a rapid, in‐situ analysis method using sheath‐flow probe electrospray ionisation‐mass spectrometry for the direct identification of cocaine metabolites in dried blood spots	9
Differentiating Δ ⁸ ‐THC and Δ ⁹ ‐THC Isomers: Mass Spectrometry Analysis and Computational Explan	9
Mathematical lipid correction of δ ¹³ C and effect of lipid extraction on δ ¹⁵ N of European eel (	9
Lithium Isotopic Analysis of Spodumene by Secondary Ion Mass Spectrometry	9
Comprehensive Characterization of the Chemical Constituents, Serum Pharmacochemistry, and Quality Control of Jieyu Pills Utilizing UHPLC‐Orbitrap Fusion MS	9
Almost perfect sequence modulated multiplexing ion mobility spectrometry	9
Development of nanomaterial enabling highly sensitive surface‐assisted laser desorption/ionization mass spectrometry peptide analysis	9
No evidence for effects of mill‐grinding on δ ¹³ C, δ ¹⁵ N and δ ³⁴	9
Sensitive Detection of Salmonella Susceptibility to Ceftriaxone and Azithromycin Using Matrix‐Assisted Laser Desorption/Ionization Time‐of‐Flight Mass Spectrometry	9
LC‐IRMS Persulfate Oxidation: Case Study on Neonicotinoid‐Related Structures	9
Use of group IIB metal ions as charge carriers for collision‐induced dissociation of glycopeptide and glycan	9
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Affordable event and monthly rain samplers: Improving isotopic datasets to understand meteorological processes	8
Test method for vapor collection and ion mobility detection of explosives with low vapor pressure	8
Identification and Characterization of Impurities in Fipronil Insecticide by LC–MS/MS and NMR	8
Discovery of metabolic markers for the discrimination of Helwingia species based on bioactivity evaluation, plant metabolomics, and network pharmacology	8
New insights into pathogenesis of congenital pseudarthrosis of tibia in children using periosteum proteomics analysis	8
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Examination of electronically mismatched Diels–Alder reaction by on‐line mass spectrometry	8
Improving the routine analysis of siderite for δ ¹³ C and δ ¹⁸ O in environmental change research	8

Oxygen Isotope Analysis for Silicate Minerals Using a High‐Temperature Conversion/Elemental Analyzer‐Isotope Ratio Mass Spectrometer	8
Profiling polysorbate 80 components using comprehensive liquid chromatography–tandem mass spectrometry analysis	8
Cover Image	8
δ ¹³ C and δ ¹⁸ O heterogeneities in carbonates: Nonlinear mixing in the application of dual‐carbo	8
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Data‐independent acquisition combined with liquid chromatography mass spectrometry technique to detect prognostic protein markers in type I gastric neuroendocrine neoplasm	8
Unveiling Flavonoid Reactivity: A High‐Resolution Mass Spectrometry Journey Through the Silylation of Quercetin	8
Colicin Immunity Proteins of Pathogenic Bacteria Detected by Antibiotic‐Induced SOS Response, Plasmid Sequencing, MALDI‐TOF‐TOF Mass Spectrometry, and Top‐Down Proteomic Analysis	8
Analysis of N ‐nitrosodimethylamine in metformin hydrochloride products by high‐resolution accurate mass gas chromatography mass spectrometry	7
Integration of high‐resolution mass spectrometry technology with molecular network analysis and systems biology techniques to elucidate the active ingredients and mechanisms of Shiduqing capsules	7
Comparing Dual Water Equilibration Methods for Hydrogen Stable Isotope Analysis of Plant Carbohydrates and Proteinaceous Animal Samples	7
Discovery and Characterization of Unusual O‐Linked Glycosylation of IgG4 Antibody Using LC‐MS	7
Two‐step particle swarm optimization algorithm for effective deconvolution and resolution enhancement of various overlapping peaks	7
Novel method for monitoring of carcinogenic impurity of N‐nitrosamine in nizatidine pharmaceutical products using ultra high‐pressure liquid chromatography triple quadrupole mass spectrometry	7
Ion Useful Yields and Matrix Effects in ²⁶ Al– ²⁶ Mg Dating by Secondary Ion Mass Spectrometry	7
LC/Q‐TOF‐MS‐based structural characterization of enasidenib degradation products and establishment of a stability‐indicating assay method: Insights into chemical stability	7
Carbon and Nitrogen Isotopic Composition of Duplicate Diet of the Japanese	7
Expanding the calibration range of compound‐specific chlorine isotope analysis by the preparation of a ³⁷ Cl‐enriched tetrachloroethylene	7
Investigation of the Collision‐Induced Dissociation Mechanism of Protonated N , N ,	7
Comparative Metabolomic Profiling of Roasted Coffee Beans From Taiwan and Brazil	7
Glutathione conjugation of nitrogen mustards: In vitro study	7
A new sampling method with zirconium‐loaded resin for phosphate oxygen isotope analysis in oligotrophic freshwater systems	7
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An experimental laboratory reactor for quantitative kinetic studies of disinfection byproduct formation using membrane inlet mass spectrometry	7
Stable Nitrogen Isotope Analysis of Amino Acids by Orbitrap Mass Spectrometry: Application for Extraterrestrial Samples	7
C/H/O stable isotope of rape honey and its components combined with machine learning algorithms to identify geographical origin	7
Development of a high‐throughput dual‐stream liquid chromatography–tandem mass spectrometry method to screen for inhibitors of glutamate carboxypeptidase II	7
A new large‐volume equilibration method for high‐precision measurements of dissolved noble gas stable isotopes	7
Review of fragmentation of synthetic single‐stranded oligonucleotides by tandem mass spectrometry from 2014 to 2022	7
Challenges in measuring nitrogen isotope signatures in inorganic nitrogen forms: An interlaboratory comparison of three common measurement approaches	7
A Green Analytical Method for Differentiating Fresh and Stored Green Teas via Determining Their Tricarboxylic Acid Organic Acids	7
Improving quality control procedures for the measurement of total daily energy expenditure using the two‐point doubly labeled water method	7
Metabolic Profiling of Sitravatinib in Rat and Human Liver Microsomes Using LC–MS/MS and LC–Orbitrap–HRMS	7
Rapid identification of bear bile powder from other bile sources using chip‐based nano‐electrospray ionization tandem mass spectrometry	7
The Site of Protonation Affects the Dissociation of Protonated α‐ and β‐Pinene Ions	7
Identification and Characterisation of UV Inactive Acid Degradation Impurities of Rebaudioside A Using LC‐HRMS/MS, Greenness Evaluation and In Silico Toxicity Studies	7
A fixed‐charge model of the N ‐protomer of 4‐aminobenzoic acid to facilitate the study of the unimolecular and bimolecular chemistry of its “neutral” car	6
Simulation study of three new quadrupole ion funnels to improve low‐mass ion transmission	6
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Characterization of potential degradation products of brexpiprazole by liquid chromatography/quadrupole–time‐of‐flight mass spectrometry and nuclear magnetic resonance, and prediction of their physico	6
Spatial analysis of the ancient proteome of archeological teeth using mass spectrometry imaging	6
Establishment of a Mass Spectrometric Fingerprint of the Most Common Phytocannabinoids in Electrospray Ionization in Positive Ion Mode	6
Multireflecting gas chromatography‐multireflecting time‐of‐flight mass spectrometer with high dynamic range	6
Proteomics analysis of an individual formalin‐fixed paraffin‐embedded tissue section using isobaric‐tag amplification	6
Covalent Organic Framework Nanofilm‐Assisted Laser Desorption Ionization Mass Spectrometry for Rapid Screening of Parabens in Personal Care Products	6
Study of protonated dimers of cytosine, cytidine, and deoxycytidine using survival yield method and quantum mechanics calculations	6
Same, but different: Variations in fragment ions among stereoisomers of a 17α‐methyl steroid in gas chromatography/electron ionization mass spectrometry	6
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A Doped Surface Ionization Method for Ion Mobility Spectrometry	6
Resonance‐Enhanced Multiphoton Ionization Spectroscopy of Monocyclic and Polycyclic Aromatic Hydrocarbons in the Gas Phase	6
A statistical approach to system suitability testing for mass spectrometry imaging	6
Phospholipid Profiling Established by Structure‐Rich Fragments for Molecular Species Level Shotgun Analysis	6
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A MassQL‐Based Framework for Rule‐Guided MS/MS Class‐Level Retrieval and Analog Discovery of Cannabinoids	6
Microcolumn Liquid Chromatography—Atmospheric Pressure Chemical Ionisation Tandem Mass Spectrometric Determination of Nitrosamine Impurities From Pharmaceutical Products	6
Imaging and quantification of neuropeptides in mouse pituitary tissue by atmospheric pressure matrix‐assisted laser desorption/ionization mass spectrometry	6
Effects of ginseng on short‐chain fatty acids and intestinal microbiota in rats with spleen‐qi deficiency based on gas chromatography–mass spectrometry and 16s rRNA technology	6
Mass Spectrometry Imaging in Archaeobotany: An Illustration Through Analytical Characterisation of Sesame Lignans	6
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Ion–shift reagent binding energy and the mass–mobility shift correlation in ion mobility spectrometry	6
Separation of mycolic acid isomers by cyclic ion mobility‐mass spectrometry	6
Characterization of the fragmentation mechanisms in electrospray ionization tandem mass spectrometry of chloroquinoline derivatives with larvicidal activity against	6
Pyrolysis‐Derived Tree‐Ring Stable Carbon Isotope Data Provide Reliable Records for Polar Paleoclimate	6
User‐friendly relative quantification procedure for gas chromatography/mass spectrometry–based plasma metabolome analysis	6
Sequential analysis of δ ¹⁵ N in guard hair suggests late gestation is the most critical period for muskox calf recruitment	6
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Comprehensive Two‐Dimensional Gas Chromatography–Mass Spectrometry for the Analysis of Atmospheric Particulate Matter	6
Optimisation of Heated Electrospray Ionisation Parameters to Minimise In‐Source Generated Impurities in the Analysis of Oligonucleotide Therapeutics	6
Multiclass Steroid Profiling in Short‐Finned Pilot Whale Blubber Using Liquid Chromatography–Tandem Mass Spectrometry (LC‐MS/MS)	6
Isotope effects accompanying δ ² H, δ ¹⁸ O a	6
Metabolomics Analysis Using Chromatography–Mass Spectrometry to Investigate the Mechanism of Cyclosporine in the Treatment of Aplastic Anemia	6
Mass Spectrometry‐Based Proteomics to Understand Immune Thrombocytopenic Purpura: A Review	6
Dissection of potential anti‐osteoporosis mechanism of isopsoralen – a quality control marker in Psoraleae Fructus – by metabolite profiling and network pharmacology	6
Analysis of mutation‐originated gain‐of‐glycosylation using mass spectrometry‐based N‐glycoproteomics	6
Quality evaluation of natural monomer flavors for Chinese tobacco industry based on dual mode combined Fourier transform ion cyclotron resonance mass spectrometry and isotopic fine structures	6
Deconvolution of overlapping peaks in ion mobility spectrometry based on a multiobjective dynamic teaching‐learning‐based optimization	5
Fentanyl and Fentanyl Analog Screening Using ASAP‐MS With LiveID Confirmation	5
New Insights Into Metandienone Metabolism by Untargeted Gas Chromatography–High‐Resolution Mass Spectrometry	5
Evaluating the optimal tissue thickness for mass spectrometry imaging using infrared matrix‐assisted laser desorption electrospray ionization	5
Development of a Matrix‐Assisted Laser Desorption Ionization High Resolution Mass Spectrometry Method for the Quantification of Camalexin and Scopoletin in Arabidopsis thaliana<	5

Exploring the Mechanistic Role of Bushen Huoxue Decoction in Treating Intervertebral Disc Degeneration Through Efferocytosis Regulation	5
Rapid Determination of Isotopic Purity of Stable Isotope (D, ¹⁵ N, or ¹³ C)‐Labeled Organic Compou	5
Determination of elemental impurities in lomefloxacin hydrochloride ear drops by inductively coupled plasma‐mass spectrometry using oxygen reaction mode and study of their catalytic effect on photodeg	5
Characterization of Grape Cane Stilbenoids and Their Photo‐Degradation Products by HPLC‐DAD Coupled With Trapped Ion Mobility Spectrometry and High‐Resolution Tandem Mass Spectrometry	5
Editorial—In Memory of Jean‐François Muller	5
On‐line chloride removal from ion chromatography for trace‐level analyses of phosphite and other anions by coupled ion chromatography–inductively coupled plasma mass spectrometry	5
Native mass spectrometry interrogation of complexes formed during targeted protein degradation	5
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Identification and characterization of the metabolites of sinomenine using liquid chromatography combined with benchtop Orbitrap mass spectrometry and nuclear magnetic resonance spectroscopy	5
Rapid characterization of isotopic purity of deuterium‐labeled organic compounds and monitoring of hydrogen–deuterium exchange reaction using electrospray ionization‐high‐resolution mass spectrometry	5
Testing Assumptions for Stable Isotope Analysis of Marine Mammal Dentin Growth Layer Groups	5
Matrix‐assisted laser desorption/ionization matrix incorporation evaluation algorithm for improved peak coverage and signal‐to‐noise ratio in mass spectrometry imaging	5
Blood Collection Tube has Minimal Interference on the Carbon and Nitrogen Isotope Composition of Plasma, Red Blood Cells, and Serum in Cow Blood	5
Characterization of Larvicidal Diterpene Resin Acids in Melipona quadrifasciata Geopropolis via LC	5
Identification and characterization of alkaline hydrolytic degradation products of ivacaftor by UPLC‐PDA and UPLC‐ESI‐QTOF‐MS techniques	5
From MS1 to Structure: A Van Krevelen–DBE–Aromaticity‐Based Framework for Annotating Specialized Metabolites via High‐Resolution Mass Spectrometry	5
New type of filaments for improved accuracy of multiple sulfur isotope analyses by electron‐impact gas‐source mass spectrometry	5
Advanced Computational Approaches for Multimodal Fusion in Mass Spectrometry Imaging	5
An Innovative Inter‐Spectral Distance‐Based Approach to Analyzing MALDI‐TOF Mass Spectra of Closely Related Microbial Species	5
Revisiting In‐Gas Transformations of Quinate Conjugates Through the LC‐qTOF‐MS and Molecular Networking Topology	5
Are benzoylium and nitrilium ions produced from substituted 2‐arene‐2‐oxazolines during mass spectrometry? A study based on density functional theory calculations, quantum theory of atoms in molecules	5
Intercomparison study of fragmentation pathways and fragment ion structures for screening of illegal drugs and their novel analogues used to adulterate dietary supplements using liquid chromatography/	5
A rapid method for the determination of stable hydrogen isotope ratios of acetic acid in vinegar	5
Characteristics of ionization behaviors of aminonitrotoluene isomers produced by atmospheric pressure chemical ionization	5
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Serum and urine metabolomics analyses reveal metabolic pathways and biomarkers in relation to nasopharyngeal carcinoma	5
Selective molecular characterization of organic aerosols using in situ laser desorption ionization mass spectrometry	5
Where have all the ions gone, long time passing? Tandem quadrupole mass spectrometers with atmospheric pressure ionization sensitivity gains since the mid‐1970s. A perspective	5
A high‐specificity aniline‐based mass tag for aldehyde detection	5
Desorption electrospray ionization mass spectrometry imaging of latent fingerprints revealed by Oil Red O	5
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Bias estimation in the certification of steroid reference materials for carbon isotope delta measurements via elemental analyser and gas chromatography‐combustion‐isotope ratio mass spectrometry	5
Molecular Organ Lysate Imprinting: For Precision Recognition and Analysis of Organ‐Derived Proteins	5
Determination of nut varieties and their detection in festive cookies by MALDI‐TOF mass spectrometry	5
Three combustion reactions in a single elemental analysis and isotope ratio mass spectrometry acquisition as a strategy to save helium and energy	5
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Micro‐punches versus micro‐slices for serial sampling of human dentine: Striking a balance between improved temporal resolution and measuring additional isotope systems	5
RCM protocols: improving reproducibility in the field of mass spectrometry	5
Clumped isotope analysis of (bio)apatite using a Kiel IV device in long‐integration dual‐inlet mode	5
Trace detection of styphnate from pre‐ and post‐blast samples by hydrophilic interaction chromatography with tandem mass spectrometry	5
Ultra‐low current electrospray ionization of chloroform solution for the analysis of perfluorinated sulfonic acids	5
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Structural elucidation of 14‐membered ring macrolide antibiotics using electrospray ionization tandem mass spectrometry and density functional theory calculations	5
Single‐filament imaging mass spectrometry lipidomics in Arthrospira platensis	5
Surface Ionization of Carbaryl, Papaverine, Cocaine, Morphine, and Triethylamine by Heated Surface‐Oxidized Metal Filaments of W, Re, Pd, Mo, Ti, and SUS304 Under Atmospheric Pressure: Ionization Mech	4
Identification of lignans and quality assessment in Dendrobium officinale under different cultivation modes	4
Identifying drug targets with thermal proteome profiling using IBT‐16plex	4
Qualitative and quantitative characterization of elastin‐like polypeptides combining low‐PH/low‐temperature bottom‐up and intact protein liquid chromatography mass spectrometric analysis	4
Mass spectrometry imaging protocol for spatial mapping of lipids, N ‐glycans and peptides in murine lung tissue	4
Rapid, sensitive analysis method for determining the nitrogen stable isotope ratio of total free amino acids in soil	4
Dual‐Channel Off‐Axis Ion Funnel With a Deflection Electrode	4
Pyrene‐Conjugated, 2‐Pyridinecarboxaldehyde Derivatives as N‐Terminus‐Specific Tags for MALDI‐ and LALDI‐MS	4
On‐column trace‐level formation of N ‐nitrosamine in a liquid chromatography–mass spectrometry analytical system	4
Cannabinoids and Terpenoids in Hemp Inflorescence and Leaves of Three Varieties in Yunnan China	4
Performance comparison of energy‐resolved mass spectrometry between quadrupole cell and linear ion trap chamber	4
Direct Identification and Quantification of Flavonoids and Their Structural Isomers Using Ambient Ionization Tandem Mass Spectrometry	4
A Laser Ablation ICP‐MS Protocol for High‐Resolution Iodine‐to‐Calcium Ratio (I/Ca) Analysis on Corals	4
Infrared pulsed fiber laser‐produced gold and silver‐109 nanoparticles for laser desorption/ionization mass spectrometry of steroid hormones	4
Kinetics of reactions of NH ₄ ⁺ with some biogenic organic molecules and monoterpenes in helium and nitrogen carrier g	4
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Determination of 115 Pesticide Residues in Textiles by Liquid Chromatography–Tandem Mass Spectrometry	4
Mass spectrometric characterization of aminophospholipids containing N ‐(2‐hydroxyethyl)glycine in kombu algae extracts	4
A simple method for rapid removal of the memory effect in cavity ring‐down spectroscopy water isotope measurements	4
Separation and characterization of the polymerized impurities in oxacillin sodium by 2D HPSEC and HPLC IT‐TOF MS	4
The effects of modifiers on electrospray ionization for small‐to‐medium‐sized molecules in comparison with solution‐phase ionization	4
Exploration of Active Substances and Its Potential Mechanism of Gancao Fuzi Decoction on Inflammatory Based on Metabolomics and Network Pharmacology	4
Detection of LGD‐4033 Metabolites in Camel Urine, Plasma, and Hair Following Oral Administration for Doping Control	4
A high‐throughput LC–MS/MS method for simultaneous determination of isoniazid, ethambutol and pyrazinamide in human plasma	4
Identification and quantification of both isomers of hexahydrocannabinol, (9 R )‐hexahydrocannabinol and (9 S	4
Phytochemical Analysis of Semen Hoveniae and Its Potential Mechanism Against Alcoholic Liver Disease via an Integrated Approach Combining UHPLC‐Q‐TOF MS, Network Pharmacology, and Molecular Docking	4
Establishing the accuracy of position‐specific carbon isotope analysis of propane by GC‐pyrolysis‐GC‐IRMS	4
Performance of Cryogenic Adsorbents for Use in Methane Bulk and Clumped Isotope Analysis	4
Full collision energy ramp‐MS ² spectral features of natural esters: Salvianolic acid A as a case	4
A SIFT Study of Reactions of Positive and Negative Ions With Polyfluoroalkyl (PFAS) Molecules in Dry and Humid Nitrogen at 393 K	4
Thin‐section‐ and matrix‐free mass spectrometry imaging: Reproducible sample transfer using novel platinum‐coated porous plate formed of glass beads	4
Cover Image	4
Advancing structural elucidation of conjugation drug metabolites in metabolite profiling with novel electron‐activated dissociation	4
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Pharmacodynamic and Metabolomic Mechanism of Shexiang Baoxin Pill Based on db/db Mice on Treating Type 2 Diabetes Mellitus	4
Alkali Halides as Matrices for the Detection of Saccharides and PEG600 by Electrospray Droplet Impact/Secondary Ion Mass Spectrometry (EDI/SIMS)	4
Metabolic study of selective androgen receptor modulator LY2452473 in thoroughbred horses for doping control	4
Chemical analysis of additives included in fully formulated oils using high‐performance liquid chromatography–tandem mass spectrometry	4
Metabolic profiling of the flower of Citrus aurantium L. var.	4
Reference‐free thio‐succinimide isomerization characterization by electron‐activated dissociation	4
A fast method for the determination of personal care product chemicals in human urine using dispersive liquid–liquid extraction and ultra high‐performance liquid chromatography–tandem mass spectrometr	4
MALDI versus DESI mass spectrometry imaging of lipids in atherosclerotic plaque	4
Combining the ¹⁵ N Gas Flux Method and N ₂ O Isotopocule Data for the Determination of Soil Microb	4
Suzetrigine in Equestrian Sports: Optimized Extraction and LC‐HRMS Detection Strategies	4
Integrated network pharmacology and GC–MS‐based metabolomics to investigate the chemical profile and efficacy of Anemarrhenae Rhizoma and its processed products	4
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Untargeted and Targeted Metabolomics Reveal the Regulatory Mechanisms of the Chuanxiong–Baizhi Herb Pair in Treating Migraine	4
Effect of Diet and Metamorphosis on the Stable Isotopes of Ectropis grisescens (Lepidoptera: Geometridae)	4