OOIR: Observatory of International Research

Papers

(The median citation count of Rapid Communications in Mass Spectrometry is 1. 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 2020-03-01 to 2024-03-01.)

Article	Citations
What can we learn from N₂O isotope data? – Analytics, processes and modelling	64
INFERYS rescoring: Boosting peptide identifications and scoring confidence of database search results	34
Identification of short‐chain fatty acid esters of hydroxy fatty acids (SFAHFAs) in a murine model by nontargeted analysis using ultra‐high‐performance liquid chromatography/linear ion trap quadrupole	31
Preparation and characterisation of IAEA‐603, a new primary reference material aimed at the VPDB scale realisation for δ¹³C and δ¹⁸O determination	28
Strategies to overcome interferences in elemental and isotopic geochemical analysis by quadrupole inductively coupled plasma mass spectrometry: A critical evaluation of the recent developments	28
Challenges and trends for halogen determination by inductively coupled plasma mass spectrometry: A review	27
Comprehensive analysis of oat avenanthramides using hybrid quadrupole‐Orbitrap mass spectrometry: Possible detection of new compounds	25
Demystifying and unravelling the molecular structure of the biopolymer sporopollenin	22
Synthesis of magnetic metal organic framework/covalent organic framework hybrid materials as adsorbents for magnetic solid‐phase extraction of four endocrine‐disrupting chemicals from milk samples	22
Open‐source add‐on kit for automation of zone elution in planar chromatography	22
A comparison of isotope ratio mass spectrometry and cavity ring‐down spectroscopy techniques for isotope analysis of fluid inclusion water	21
Applications of direct analysis in real time mass spectrometry in food analysis: A review	20
An integrated strategy for profiling the chemical components of Scutellariae Radix and their exogenous substances in rats by ultra‐high‐performance liquid chromatography/quadrupole time‐of‐flight mass	20
Continuous in situ measurements of water stable isotopes in soils, tree trunk and root xylem: Field approval	19
A calibration equation between Δ₄₈values of carbonate and temperature	19
A rapid and convenient derivatization method for quantitation of short‐chain fatty acids in human feces by ultra‐performance liquid chromatography/tandem mass spectrometry	19
Evaluating a targeted multiple reaction monitoring approach to global untargeted lipidomic analyses of human plasma	18
Determination of absolute photoionization cross‐sections of some aromatic hydrocarbons	18
Carbonate clumped isotope analysis (Δ₄₇) of 21 carbonate standards determined via gas‐source isotope‐ratio mass spectrometry on four instrumental configurations using carbonate‐based standa	17
Large‐scale tandem mass spectrum clustering using fast nearest neighbor searching	16
Identifying migratory pathways of Nathusius' pipistrelles (Pipistrellus nathusii) using stable hydrogen and strontium isotopes	16
Precise measurement of ⁴¹K/³⁹K ratios by high‐resolution multicollector inductively coupled plasma mass spectrometry under a dry and hot plasma setting	16
Compound‐specific stable hydrogen isotope (δ²H) analyses of fatty acids: A new method and perspectives for trophic and movement ecology	16
Biosaur: An open‐source Python software for liquid chromatography–mass spectrometry peptide feature detection with ion mobility support	16
UV post‐ionization laser ablation ionization mass spectrometry for improved nm‐depth profiling resolution on Cr/Ni reference standard	16

A method for stable carbon isotope measurement of underivatized individual amino acids by multi‐dimensional high‐performance liquid chromatography and elemental analyzer/isotope ratio mass spectrometr	15
USGS44, a new high‐purity calcium carbonate reference material for δ¹³C measurements	15
Strontium isotope ratios related to childhood mobility: Revisiting sampling strategies of the calcined human pars petrosa ossis temporalis	15
Current and future deep learning algorithms for tandem mass spectrometry (MS/MS)‐based small molecule structure elucidation	15
Site‐ and structure‐specific characterization of the human urinary N‐glycoproteome with site‐determining and structure‐diagnostic product ions	14
GC‐MS analysis of Amaryllidaceae and Sceletium‐type alkaloids in bioactive fractions from Narcissus cv. Hawera	14
Optimized workflow for unknown screening using gas chromatography high‐resolution mass spectrometry expands identification of contaminants in silicone personal passive samplers	14
Fiber spray ionization mass spectrometry in forensic chemistry: A screening of drugs of abuse and direct determination of cocaine in urine	14
Metabolic profiling of synthetic cannabinoid 5F‐ADB and identification of metabolites in authentic human blood samples via human liver microsome incubation and ultra‐high‐performance liquid chromatogr	14
Matrix ions as internal standard for high mass accuracy matrix‐assisted laser desorption/ionization mass spectrometry imaging	14
Organic contamination detection for isotopic analysis of water by laser spectroscopy	13
Sensitivity of secondary electrospray ionization mass spectrometry to a range of volatile organic compounds: Ligand switching ion chemistry and the influence of Zspray™ guiding electric fields	13
The maximum carbonyl ratio (MCR) as a new index for the structural classification of secondary organic aerosol components	13
Dietary protein content and digestibility influences discrimination of amino acid nitrogen isotope values in a terrestrial omnivorous mammal	13
Aom²S: A new web‐based application for DNA/RNA tandem mass spectrometry data interpretation	13
Automated multi‐attribute method sample preparation using high‐throughput buffer exchange tips	13
High‐precision stable isotope analysis of <5 μg CaCO₃ samples by continuous‐flow mass spectrometry	13
Structural elucidation of hydroxy fatty acids by photodissociation mass spectrometry with photolabile derivatives	13
Seaweed‐eating sheep show that δ³⁴S evidence for marine diets can be fully masked by sea spray effects	13
Characterisation of new reference materials IAEA‐610, IAEA‐611 and IAEA‐612 aimed at the VPDB δ¹³C scale realisation with small uncertainty	13
Reagent and analyte ion hydrates in secondary electrospray ionization mass spectrometry (SESI‐MS), their equilibrium distributions and dehydration in an ion transfer capillary: Modelling and experimen	12
Rapid identification and discrimination of methicillin‐resistant Staphylococcus aureus strains via matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry	12
An emerging powerful technique for distinguishing isomers: Trapped ion mobility spectrometry time‐of‐flight mass spectrometry for rapid characterization of estrogen isomers	12
Drug metabolite identification using ultrahigh‐performance liquid chromatography–ultraviolet spectroscopy and parallelized scans on a tribrid Orbitrap mass spectrometer	12
A further insight into methyltestosterone metabolism: New evidences from in vitro and in vivo experiments	12
Screening for illegal addition of glucocorticoids in adulterated cosmetic products using ultra‐performance liquid chromatography/tandem mass spectrometry with precursor ion scanning	11
Separation and characterization of unknown impurities in rutin tablets using trap‐free two‐dimensional liquid chromatography coupled with ion trap/time‐of‐flight mass spectrometry	11
Tandem‐trapped ion mobility spectrometry/mass spectrometry coupled with ultraviolet photodissociation	11
Leaf transition from heterotrophy to autotrophy is recorded in the intraleaf C, H and O isotope patterns of leaf organic matter	11
A mathematical comparison of non‐negative matrix factorization related methods with practical implications for the analysis of mass spectrometry imaging data	11
Development of a fast‐switching dual (ESI/APCI) ionization source for liquid chromatography/mass spectrometry	11
Effects of oxygen plasma ashing treatment on carbonate clumped isotopes	11
Progress and challenges in dual‐ and triple‐isotope (δ¹⁸O, δ²H, Δ¹⁷O) analyses of environmental waters: An international assessment of laboratory performance	11
Identification of the stable and reactive metabolites of tetrahydropiperine using ultrahigh‐performance liquid chromatography combined with diode‐array detection and high‐resolution mass spectrometry	11
Systematic characterization of alkaloids in Eomecon chionantha Hance using ultrahigh‐performance liquid chromatography–tandem quadrupole Exactive Orbitrap mass spectrometry with a four‐step scr	11
Improving memory effect correction to achieve high‐precision analysis of δ¹⁷O, δ¹⁸O, δ²H, ¹⁷O‐excess and d‐excess in water using cavity ring‐down laser spec	10
Development and validation of a liquid chromatography/tandem mass spectrometry method to quantify metabolites of phthalates, including di‐2‐ethylhexyl terephthalate (DEHTP) and bisphenol A, in human u	10
Sulfur isotope analysis of cysteine and methionine via preparatory liquid chromatography and elemental analyzer isotope ratio mass spectrometry	10
Identification and structural characterization of lipid A from Escherichia coli, Pseudomonas putida and Pseudomonas taiwanensis using liquid chromatography coupled to h	10
MS Amanda 2.0: Advancements in the standalone implementation	10
Mass spectrometric characterisation of the circulating peptidome following oral glucose ingestion in control and gastrectomised patients	10
Different absorption and metabolism of ginsenosides after the administration of total ginsenosides and decoction of Panax ginseng	10
Recommendations for offline combustion‐based nitrogen isotopic analysis of silicate minerals and rocks	10
Nitrogen isotopic analysis of nitrate in aquatic environment using cadmium–hydroxylamine hydrochloride reduction	10
Evaluation and minimization of nonspecific tryptic cleavages in proteomic sample preparation	10
In situ synthesis of a novel metal oxide affinity chromatography affinity probe for the selective enrichment of low‐abundance phosphopeptides	10
On the metrological traceability and hierarchy of stable isotope reference materials aimed at realisation of the VPDB scale: Revision of the VPDBδ¹³C scale based on multipoint scale‐	10
A case of personalized and precision medicine: Pharmacometabolomic applications to rare cancer, microbiological investigation, and therapy	10
Metabolite identification using an ion mobility enhanced data‐independent acquisition strategy and automated data processing	10
Practical considerations for improved reliability and precision during determination of δ¹⁵N values in amino acids using a single combined oxidation–reduction reactor	10

Internal standard application strategies in mass spectrometry imaging by desorption electrospray ionization mass spectrometry	9
Probing for the presence of doping agents in exhaled breath using chromatographic/mass spectrometric approaches	9
Rapid and direct identification of the origin of white tea with proton transfer reaction time‐of‐flight mass spectrometry	9
In situ Mg isotope measurements of biogenic carbonates using laser ablation multi‐collector inductively coupled plasma mass spectrometry: A new tool to understand biomineralisation	9
In situ detection of fatty acid C=C positional isomers by coupling on‐tissue mCPBA epoxidation with infrared matrix‐assisted laser desorption electrospray ionization mass spectrometry	9
An overview of biological applications and fundamentals of new inlet and vacuum ionization technologies	9
Rapid fingerprint analysis for herbal polysaccharides using direct analysis in real‐time ionization mass spectrometry	9
Improving the extraction and purification of leaf and phloem sugars for oxygen isotope analyses	9
Real‐time versus thermal desorption selected ion flow tube mass spectrometry for quantification of breath volatiles	9
Recalculation of stable isotope expressions for HCNOS: EasyIsoCalculator	9
Structural characterization and discrimination of Paris polyphylla var. yunnanensis by a molecular networking strategy coupled with ultra‐high‐performance liquid chromatography with quad	9
Profiling the Philippine Blue: Liquid chromatography/mass spectrometry‐based metabolomics study on Philippine Indigofera	9
Mass spectral fragmentation of perfluoroacyl derivatives of half nitrogen mustards for their detection by gas chromatography/mass spectrometry	8
Doping control analysis of GW1516 in equine plasma using liquid chromatography/electrospray ionization Q‐Exactive high‐resolution mass spectrometry	8
Position‐specific carbon isotope analysis of serine by gas chromatography/Orbitrap mass spectrometry, and an application to plant metabolism	8
Bioactive activities and chemical profile characterization using paper spray mass spectrometry of extracts of Eriobotrya japonica Lindl. leaves	8
Integrated biomarker for type 2 diabetes mellitus and impaired fasting glucose based on metabolomics analysis using ultra‐high performance liquid chromatography quadrupole‐Orbitrap high‐resolution acc	8
Assessing the effects of lipid extraction and lipid correction on stable isotope values (δ¹³C and δ¹⁵N) of blubber and skin from southern hemisphere humpback whales	8
Coceth sulfate characterization by electrospray ionization tandem mass spectrometry	8
Atmospheric pressure ionization mass spectrometry as a tool for structural characterization of lignin	8
Electrospray ionization rapid screening sans liquid chromatography column: A sensitive method for detection and quantification of chemicals in animal tissues and urine	8
Identification of C‐glycosyl flavones and quality assessment in Dendrobium nobile	8
Chromatographic‐mass spectrometric analysis of the urinary metabolite profile of chlorphenesin observed after dermal application of chlorphenesin‐containing sunscreen	8
Authenticating bioplastics using carbon and hydrogen stable isotopes – An alternative analytical approach	8
Saccharomyces cerevisiae and S. pastorianus species and strain differentiation by direct analysis in real time time‐of‐flight mass spectrometry	8
Establishment of the tandem mass spectrometric fingerprints of taxane‐based anticancer compounds	8
Estimating the intermediate precision in petroleum analysis by (±)electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry	8
A rapid liquid chromatography/tandem mass spectrometry method for simultaneous determination of levodopa, carbidopa, entacapone and their six related compounds in film‐coated tablets	8
Impurity identification and quantification for arginine vasopressin by liquid chromatography/high‐resolution mass spectrometry	8
Formation of positive product ions from substances with low proton affinity in high kinetic energy ion mobility spectrometry	8
Separation and characterization of impurities and isomers in cefpirome sulfate by liquid chromatography/tandem mass spectrometry and a summary of the fragmentation pathways of oxime‐type cephalosporin	8
Different glycolipids in sperm from different freshwater fishes – A high‐performance thin‐layer chromatography/electrospray ionization mass spectrometry study	8
Determination of intracellular anlotinib, osimertinib, afatinib and gefitinib accumulations in human brain microvascular endothelial cells by liquid chromatography/tandem mass spectrometry	8
Coated glass capillaries as SPME devices for DART mass spectrometry	8
Proficiency testing of 78 international laboratories measuring tritium in environmental waters by decay counting and mass spectrometry for age dating and water resources assessment	8
Effects of marine biofertilisation on Celtic bean carbon, nitrogen and sulphur isotopes: Implications for reconstructing past diet and farming practices	8
Optimized switch‐over between CHNS abundance and CNS isotope ratio analyses by elemental analyzer‐isotope ratio mass spectrometry: Application to six geological reference materials	8
Identification of the metabolites of piperine via hepatocyte incubation and liquid chromatography combined with diode‐array detection and high‐resolution mass spectrometry	8
A rapid sample preparation method for the analysis of stable isotope ratios of beef samples from different countries	8
Investigating the fragmentation pathways of β‐naphthol pigments using liquid chromatography/electrospray ionization quadrupole time‐of‐flight mass spectrometry	8
Isotope ratio infrared spectroscopy analysis of water samples without memory effects	7
Rapid decomposition of geological samples by ammonium bifluoride (NH₄HF₂) for combined Hf‐Nd‐Sr isotope analyses	7
Construction of boric acid‐functionalized metal–organic frameworks for glycopeptide recognition in the serum of cervical cancer patients	7
A protocol for using attenuated total reflection Fourier‐transform infrared spectroscopy for pre‐screening ancient bone collagen prior to radiocarbon dating	7
Quality assessment of Succus Bambusae oral liquids based on gas chromatography/mass spectrometry fingerprints and chemometrics	7
Isotopic and elemental corroborates for wild bearded capuchin (Sapajus libidinosus) omnivorous dietary adaptation at Fazenda Boa Vista, Brazil	7
Understanding the relative performance of SCAN, SIM, PMRM and MRM methods for quantifying polycyclic aromatic hydrocarbons in crude oil samples	7
Open‐source feature detection for non‐target LC–MS analytics	7
Metabolic study of ginsenoside Rg3 and glimepiride in type 2 diabetic rats by liquid chromatography coupled with quadrupole‐Orbitrap mass spectrometry	7
Resolution enhancement of overlapping peaks of ion mobility spectrometry based on improved particle swarm optimization algorithm	7
Fragmentation study of clerodane diterpenes from Casearia species by tandem mass spectrometry (quadrupole time‐of‐flight and ion trap)	7
High‐spatial‐resolution measurements of iron isotopes in pyrites by secondary ion mass spectrometry using the new Hyperion‐II radio‐frequency plasma source	7
Metabolic study of GW1516 in equine urine using liquid chromatography/electrospray ionization Q‐Exactive high‐resolution mass spectrometry for doping control	7
Electrospray ionization and heterogeneous matrix effects in liquid chromatography/mass spectrometry based meta‐metabolomics: A biomarker or a suppressed ion?	7
Qualitative analysis on chemical constituents from different polarity extracted fractions of the pulp and peel of ginger rhizomes by ultra‐high‐performance liquid chromatography coupled with electrosp	7
Analysis of fragmentation pathways of fentanyl derivatives by electrospray ionisation high‐resolution mass spectrometry	7
Isotope partitioning between cow milk and farm water: A tool for verification of milk provenance	7
Characterization of maitotoxin‐4 (MTX4) using electrospray positive mode ionization high‐resolution mass spectrometry and UV spectroscopy	7
Determination of magnesium isotopic ratios of biological reference materials via multi‐collector inductively coupled plasma mass spectrometry	7
An overlapping peaks separation algorithm for ion mobility spectrometry based on second‐order differentiation and dynamic inertia weight particle swarm optimization algorithm	7
Profiling and analysis of multiple constituents in Crataegi Fructus before and after processing by ultrahigh‐performance liquid chromatography quadrupole time‐of‐flight mass spectrometry	7
Detection and longitudinal distribution of GW1516 and its metabolites in equine hair for doping control using liquid chromatography/high‐resolution mass spectrometry	7
Comparisons of stable isotope composition among tissues of green turtles	7
A simple cryogenic method for efficient analysis of triple oxygen isotopes in silicates	7
Application of a simultaneous screening method for the detection of new psychoactive substances in various matrix samples using liquid chromatography/electrospray ionization tandem mass spectrometry a	7
Detecting the misuse of 7‐oxo‐DHEA by means of carbon isotope ratio mass spectrometry in doping control analysis	7
Why tandem mass spectrometry for trace analysis: Concepts of tandem analytical techniques	7
Chemical compositional analysis of soil fulvic acids using Fourier transform ion cyclotron resonance mass spectrometry	7
Kinetics of reactions of NH₄⁺ with some biogenic organic molecules and monoterpenes in helium and nitrogen carrier gases: A potential reagent ion for selected ion flow tube mass	7
Comparative metabolism of gelsenicine in liver microsomes from humans, pigs, goats and rats	7
Fine adjustment of gas modifier loadings for separation of epimeric glycopeptides using differential ion mobility spectrometry mass spectrometry	7
Establishment of rapid, sensitive, and quantitative liquid chromatography‐electrospray ionization‐tandem mass spectrometry method coupled with liquid–liquid extraction for measurement of urinary bisph	7
First investigation and absolute calibration of clumped isotopes in N₂O by mid‐infrared laser spectroscopy	7
Progress of proteomics‐driven precision medicine: From a glycosylation view	7
Limitations of deuterium‐labeled internal standards for quantitative electrospray ionization mass spectrometry analysis of fatty acid metabolites	7
High‐precision measurement of phenylalanine and glutamic acid δ¹⁵N by coupling ion‐exchange chromatography and purge‐and‐trap continuous‐flow isotope ratio mass spectrometry	7
Nitrogen isotope analysis of aqueous ammonium and nitrate by membrane inlet isotope ratio mass spectrometry (MIRMS) at natural abundance levels	6
An advanced LC–MS/MS protocol for simultaneous detection of pharmaceuticals and personal care products in the environment	6
Matrix‐assisted laser desorption/ionization mass spectrometry biotyping, an approach for deciphering and assessing the identity of the honeybee pathogen Nosema	6
Simultaneous determination of triclosan, triclocarban, triclocarban metabolites and byproducts in urine and serum by ultra‐high‐performance liquid chromatography/electrospray ionization tandem mass sp	6

Effect of removal of organic material on stable isotope ratios in skeletal carbonate from taxonomic groups with complex mineralogies	6
Determination of trace fluoride in water samples by silylation and gas chromatography/mass spectrometry analysis	6
Resolving isobaric interferences in direct infusion tandem mass spectrometry	6
Metabolic profiling of senkyunolide A and identification of its metabolites in hepatocytes by ultra‐high‐performance liquid chromatography combined with diode‐array detector and high‐resolution mass s	6
Method for calibrating methane clumped isotope measurements via catalytic equilibration of methane isotopologues on γ‐alumina	6
Application of online liquid chromatography/quadrupole time‐of‐flight electrospray ionization tandem mass spectrometry for structural characterization of linagliptin degradation products and related i	6
Electrospray ionization in‐source decay of N‐glycans and the effects on N‐glycan structural identification	6
Evaluation of two lipid removal methods for stable carbon and nitrogen isotope analysis in whale tissue	6
New suitable deprotonating matrices for the analysis of carboxylic acids and some acidic compounds by matrix‐assisted laser desorption/ionization mass spectrometry in negative ion mode	6
Optimal conditions for tandem mass spectrometric sequencing of information‐containing nitrogen‐substituted polyurethanes	6
A feasible strategy based on high ultrasound frequency and mass spectrometry for discriminating individuals diagnosed with bipolar disorder and schizophrenia through ionomic profile	6
Masserstein: Linear regression of mass spectra by optimal transport	6
Efficient identification of raw and ripe tung oil using headspace GC–MS	6
Preservation methods for the isotopic composition of dissolved carbon species in non‐ideal conditions	6
Detection of ergosterol using liquid chromatography/electrospray ionization mass spectrometry: Investigation of unusual in‐source reactions	6
Detection of glutathione, cysteine, and homocysteine by online derivatization‐based electrospray mass spectrometry	6
High‐performance liquid chromatography–tandem mass spectrometry with post‐column pH modification: Independent pH optimization for chromatographic separation and electrospray ionization	6
High‐performance thin‐layer chromatography with atmospheric solids analysis probe mass spectrometry for analysis of gasoline polymeric additives	6
Electrospray ionization mass spectrometry ion suppression/enhancement caused by column bleed for three mixed‐mode reversed‐phase/anion‐exchange high‐performance liquid chromatography columns	6
Atmospheric pressure chemical ionization mass spectrometry at low flow rates: Importance of ion source housing	6
Proteomic profile of bone “collagen” extracted for stable isotopes: Implications for bulk and single amino acid analyses	6
Effect of berberine on in vitro metabolism of sulfonylureas: A herb–drug interactions study	6
Matrix‐assisted laser desorption/ionization time‐of‐flight/time‐of‐flight tandem mass spectrometry (negative ion mode) of French Oak lignin: A novel series of lignin and tricin derivatives attached to	6
Forensic identification of the keratin fibers of South American camelids by ambient ionization mass spectrometry: Vicuña, alpaca and guanaco	5
Ion chromatography coupled to mass spectrometry as a powerful technique for halogens and sulfur determination in egg powder and its fractions	5
Absolute isotope ratios defining isotope scales used in isotope ratio mass spectrometers and optical isotope instruments	5
Continuous and simultaneous measurement of triple‐oxygen and hydrogen isotopes of liquid and vapor during evaporation experiments	5
Rhodiola crenulata protects against Alzheimer's disease in rats: A brain lipidomics study by Fourier‐transform ion cyclotron resonance mass spectrometry coupled with high‐performance reversed‐p	5
Laser ablation inductively coupled plasma mass spectrometry as a novel clinical imaging tool to detect asbestos fibres in malignant mesothelioma	5
Metabolic profile of alkaloids in Rhizoma Coptidis in rat plasma, urine and feces after oral administration using ultra‐high‐performance liquid chromatography coupled with quadrupole time‐of‐flight ma	5
Automation of boron chromatographic purification for δ¹¹B analysis of coral aragonite	5
Identification and characterization of novel metabolites of nintedanib by ultra‐performance liquid chromatography/quadrupole time‐of‐flight tandem mass spectrometry with in silico toxicological	5
Understanding the effect of spatial positioning of coated blade spray devices relative to the mass spectrometry inlet on different instrument platforms and its application to quantitative analysis of	5
Dissection of the potential anti‐diabetes mechanism of salvianolic acid B by metabolite profiling and network pharmacology	5
Evaluation of muscle lipid extraction and non‐lethal fin tissue use for carbon, nitrogen, and sulfur isotope analyses in adult salmonids	5
Determination of N7‐glycidamide guanine adducts in human blood DNA following exposure to dietary acrylamide using liquid chromatography/tandem mass spectrometry	5
Successive and automated stable isotope analysis of CO₂, CH₄ and N₂O paving the way for unmanned aerial vehicle‐based sampling	5
Determination of the δ²H values of high molecular weight lipids by high‐temperature gas chromatography coupled to isotope ratio mass spectrometry	5
Improved spatial resolution of infrared matrix‐assisted laser desorption electrospray ionization mass spectrometry imaging using a reflective objective	5
Rapid quantitative screening of cyanobacteria for production of anatoxins using direct analysis in real time high‐resolution mass spectrometry	5
Isotopic analysis of sub‐nanogram neodymium loads using new ATONA™ amplifiers	5
Application of a “Continuous‐Acquisition‐Method” to potassium isotope measurements by multi‐collector inductively coupled plasma mass spectrometry	5
Direct analysis of surface chemicals using vibrating sharp‐edge spray ionization mass spectrometry	5
Modifying superparamagnetic iron oxide and silica nanoparticles surfaces for efficient (MA)LDI‐MS analyses of peptides and proteins	5
New Ag₃PO₄ comparison material for stable oxygen isotope analysis	5
Desorption ionization using through‐hole alumina membrane offers higher reproducibility than 2,5‐dihydroxybenzoic acid, a widely used matrix in Fourier transform ion cyclotron resonance mass spectrome	5
A fluorination method for measuring the ¹³C‐¹³C isotopologue of C₂ molecules	5
High‐resolution mass spectrometry (HRMS): Focus on the m/z values estimated by the Savitzky–Golay first derivative	5
Non‐target profiling of bitumen‐influenced waters for the identification of tracers unique to oil sands processed‐affected water (OSPW) in the Athabasca watershed of Alberta, Canada	5
Untargeted selected ion flow tube mass spectrometry headspace analysis: High‐throughput differentiation of virgin and recycled polyethylene pellets	5
Study of the isomeric Maillard degradants, glycosylamine and Amadori rearrangement products, and their differentiation via MS² fingerprinting from collision‐induced decomposition of protona	5
Characterization of growth hormone secretagogue small molecule ibutamoren (MK‐0677) and its possible metabolites in thoroughbred horses for doping control	5
Rapid screening of glycoalkaloids in Solanum scabrum and S. nigrum berries using ultra‐high‐performance liquid chromatography with pathway‐specified in‐source fragm	5
Rapid detection of nine synthetic cathinones in blood and urine by direct analysis in real‐time‐tandem mass spectrometry	5
Rapid glycosyl‐inositol‐phospho‐ceramide fingerprint from filamentous fungal pathogens using the MALDI Biotyper Sirius system	5
Immunoaffinity microflow liquid chromatography/tandem mass spectrometry for the quantitation of PD1 and PD‐L1 in human tumor tissues	5
An approach for calibrating laser‐based N₂O isotopic analyzers for soil biogeochemistry research	5
Metabolomics workflow as a driven tool for rapid detection of metabolites in doping analysis. Development and validation	5
High‐resolution mass spectrometry exhalome profiling with a modified direct analysis in real time ion source	5
Rapid analysis of fragrance allergens by dielectric barrier discharge ionization mass spectrometry	5
Influence ofδ¹⁸O of water on measurements ofδ¹⁸O of nitrite and nitrate	5
Ion‐exchange resin and denitrification pretreatment for determining δ¹⁵N‐NH₄⁺, δ¹⁵N‐NO₃⁻, and δ¹⁸O‐NO₃⁻	5
Structure–fragmentation study of pentacyclic triterpenoids using electrospray ionization quadrupole time‐of‐flight tandem mass spectrometry (ESI‐QTOFMS/MS)	5
Implementation of an enclosed ionization interface for the analysis of liquid sample streams with direct analysis in real time mass spectrometry	5
Computational classification of core and outer fucosylation of N‐glycoproteins in human plasma using collision‐induced dissociation in mass spectrometry	5
The Soil Water Isotope Storage System (SWISS): An integrated soil water vapor sampling and multiport storage system for stable isotope geochemistry	5
The analysis of commercially available natural products recommended for use in electronic cigarettes	5
Differentiation of leucine and isoleucine residues in peptides using charge transfer dissociation mass spectrometry (CTD‐MS)	5
Establishing the accuracy of position‐specific carbon isotope analysis of propane by GC‐pyrolysis‐GC‐IRMS	5
Identification of the metabolites of methylophiopogonanone A by ultra‐high‐performance liquid chromatography combined with high‐resolution mass spectrometry	5
An insect isoscape of UK and Ireland	5
Protein precipitation coupled to paper spray with a tube for one‐step analysis of blood	5
Study of the impurity profile and characteristic fragmentation of Δ³‐isomers in cephapirin sodium using dual liquid chromatography coupled with ion trap/time‐of‐flight mass spectrometry	5
The influence of different types of reactant ions on the ionization behavior of polycyclic aromatic hydrocarbons in corona discharge ion mobility spectrometry	5
Ontogenetic dependence of Nile crocodile (Crocodylus niloticus) isotope diet‐to‐tissue discrimination factors	5
In‐depth gas chromatography/tandem mass spectrometry fragmentation analysis of formestane and evaluation of mass spectral discrimination of isomeric 3‐keto‐4‐ene hydroxy steroids	5
Characterization of equine liver microsome‐generated metabolites of growth hormone secretagogue small molecule ibutamoren	5
Identification of metabolites in plasma related to different biological activities of Panax ginseng and American ginseng	4
Improved plasma stoichiometry recorded by laser ablation ionization mass spectrometry using a double‐pulse femtosecond laser ablation ion source	4
Simplified method for the measurement of plasma alkylresorcinols: Biomarkers of whole‐grain intake	4
Profiling fragments for carotenoid esters in Penaeus monodon by ultra‐high‐performance liquid chromatography/quadrupole‐Orbitrap high‐resolution mass spectrometry	4
Exploration of disaccharide as reference towards chiral recognition by the kinetic method	4
Vaporization and thermodynamic properties of the SrO‐Al₂O₃ system studied by Knudsen effusion mass spectrometry	4
Method of micro‐sampling human dentine collagen for stable isotope analysis	4
Further optimisation of the denitrifier method for the rapid ¹⁵N and ¹⁸O analysis of nitrate in natural water samples	4
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	4
Manual mass spectrometry de novo sequencing of the anionic host defense peptides of the Cuban Treefrog Osteopilus septentrionalis	4
The use of pseudo‐MRM for a sensitive and selective detection and quantification of polycyclic aromatic compounds by tandem mass spectrometry	4
Isotopically characterised N₂O reference materials for use as community standards	4
Electrospray ionization mass spectrometry adduct formation by mobile phase additives: A case study using nitrile functional groups containing selective androgen receptor modulators	4
Guidance for characterization of in‐house reference materials for light element stable isotope analysis	4
Rationalising the retro‐Diels‐Alder fragmentation pattern of viscutins using electrospray interface‐tandem mass spectrometry coupled to theoretical modelling	4
Integrated qualitative analysis of polymer sample by pyrolysis–gas chromatography combined with high‐resolution mass spectrometry: Using accurate mass measurement results from both electron ionization	4
Development and validation of an analytical method for trace‐level quantification of genotoxic nitrosamine impurities in losartan and hydrochlorothiazide fixed‐dose combination tablets using ultra per	4
Gas chromatography/mass spectrometry analysis of organic acid profiles in human serum: A protocol of direct ultrasound‐assisted derivatization	4