样式: 排序: IF: - GO 导出 标记为已读
-
Discrimination of subtypes of sesquiterpene pyridine alkaloids using a multistage ion fragmentation strategy Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-03-17 Zhongmou Zhang, Yadan Wang, Yongjian Wang, Xianfu Wu, Shuangcheng Ma
Sesquiterpene pyridine alkaloids (SPAs) are a large group of macrocyclic dilactones formed by dihydro-β-agarofuran sesquiterpenes and pyridine dicarboxylic acids, which have aroused widespread interest in the field of medicine due to their significant biological activities. In order to achieve accurate and rapid characterization of SPAs, previous studies have systematically investigated their fragmentation
-
Rb, Sr, Sm and Nd elemental concentrations and Sr and Nd isotopic ratios of 13 Chinese rock reference materials using isotope dilution TIMS and MC–ICP–MS Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-03-09 Yue-Heng Yang, Suo-Han Tang, Wen-Gang Liu, Yan Yan, Lie-Wen Xie, Chao Huang, Shi-Tou Wu, Hao Wang, Jin-Hui Yang, Fu-Yuan Wu
The suitability of 13 Chinese silicate rock certified reference materials for Sr and Nd isotope analyses was firstly investigated. To indicate their homogeneity and to provide information values, we report Sr and Nd isotopic data and Rb, Sr, Sm and Nd concentrations for reference materials GBW07 103–105, 109–113 and 121–125 spanning a broad compositional range. Test portions were spiked with tracers
-
Detection of 238Pu at picogram quantities by laser resonance ionization mass spectrometry Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-03-07 Peng-fei Zhang, Zhi-ming Li, Wen-liang Wang, lei Feng, Jiang Xu, Man-chao Zhang, Xiao-pan Shen, Xiang-long Yuan, Fei-teng Li, Hu Deng, Li-hua Zhai
Based on the laser resonance ionization mass spectrometry (LRIMS) developed in the laboratory, a preliminary method was established to determine Pu isotope ratios. A three-color-three-photon resonance ionization scheme was confirmed, and the laser wavelengths of each excitation/ionization step were λ = 586.654 nm, λ = 606.181 nm and λ = 642.722 nm. The selective ionization of Pu/U was realized by testing
-
Influence of Polarity Mode Switching and Standby Times on Signal Stability and Detection of Aspirated Droplet Signatures in Electrospray Mass Spectrometry Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-03-07 Chris Heintz, Lisa Schnödewind, Oliver Braubach, Hendrik Kersten, Thorsten Benter, Walter Wißdorf
Electrospray ionization plays a central role in modern analytical chemistry. It is often used in combination with an HPLC system and is able to transfer large molecules, such as proteins and complexes, into the gas phase. A liquid solution containing the analyte is sprayed in a strong electric field. Charged droplets generated by this process release the analyte molecules which can ultimately be analyzed
-
Examining DNA structures with in-droplet hydrogen/deuterium exchange mass spectrometry Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-03-07 Kushani Attanayake, Sultan Mahmud, Chandrima Banerjee, Daud Sharif, Mohammad Rahman, Sandra Majuta, Anthony DeBastiani, Mst Nigar Sultana, Samira Hajian Foroushani, Chong Li, Peng Li, Stephen J. Valentine
Capillary vibrating sharp-edge spray ionization (cVSSI) combined with hydrogen/deuterium exchange-mass spectrometry (HDX-MS) has been utilized to characterize different solution-phase DNA conformers including DNA G-quadruplex topologies as well as triplex DNA and duplex DNA. In general, G-quadruplex DNA shows a wide range of protection of hydrogens extending from ∼12% to ∼21% deuterium incorporation
-
Improving throughput in Orbitrap using the ion funnel with orthogonal injection and observation of chemical noise in high-resolution MS instruments Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-03-07 Eugene Moskovets, Bogdan Budnik
Overall, the nanoflow chromatographic separation, nano-electrospray source, and Orbitrap Elite mass spectrometer with the dual-stage ion funnel that replaced the standard heated-cone inlet were used in the MS analysis of low-abundance peptide samples. The analytical advantage of the ion funnel was demonstrated in the LC-MS analysis of HeLa protein digest mixture. Chemical noise patterns in Orbitrap
-
High-resolution mass spectrometric elucidation of electron ionization induced fragmentation pathways of methylated warfarin and selected hydroxylated species Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-03-01 W.J. von Törne, L. Steinhäuser, U.-A. Klyk-Seitz, C. Piechotta
The plant secondary metabolite families of coumarin and 4-hydroxy coumarin have a broad pharmacological spectrum ranging from antibacterial to anticancer properties. One prominent member of this substance class is the synthetic but naturally inspired anticoagulant drug and rodenticide warfarin (coumadin). A vast number of publications focus on the identification of warfarin and its major cytochrome
-
Survey of the multi-stage mass spectrometry of common ionic liquid cations and some polyfluorinated ions Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-02-28 Taofiq Abdulraheem, Jayna G. Wallinger, Matthew J. Carlo, Amanda L. Patrick
Ionic liquids are useful for many applications and the structural diversity as a class is ever increasing. Knowledge of gas-phase dissociation pathways can inform analytical method development for the characterization of novel syntheses, degradation products, or environmental contaminants, and can inform our knowledge of the fate of ionic liquid species in the gas phase (e.g., after ejection by electrospray
-
Decarboxylation of fatty acids by ternary zinc cationic complexes studied by mass spectrometry and theoretical calculations Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-02-22 Anthony Fanizza, Ryan Berg, Julia Hoffman, Thomas M. Gilbert, Victor Ryzhov
We have shown that fatty acids can be decarboxylated in the gas phase via collision-induced dissociation (CID) of ternary zinc complexes of the general formula [(L)Zn(OOCR)], where RCH, CH, CH, CH, CH, CH and L = 1,10-phenanthroline or 2,2′:6′,2″-terpyridine. These complexes were formed by electrospray ionization of a solution mixture of zinc(II) salt, fatty acid and the ligand. Two pathways were mapped
-
MALDI sample preparation methods: A mini review Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-02-20 Avinash A. Patil, Mhikee Janella N. Descanzo, Vaishnavi B. Dhisale, Wen-Ping Peng
Matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) has emerged as a robust analytical technique for the rapid and sensitive analysis of diverse biomolecules. MALDI-MS effectiveness relies on meticulous sample preparation, with a particular emphasis on achieving a uniform sample surface. Although the dried droplet (DD) method is widely utilized, it encounters challenges such as
-
Non-degenerate dodecapole resonances in an asymmetric linear ion trap of round rod geometry Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-02-15 Pintu Mandal, Manas Mukherjee
Linear ion traps and quadrupole mass spectrometers play vital roles in quantum technologies and classical mass spectrometry respectively. Therefore, such systems with nearly same operational principles, are very well studied both theoretically and experimentally. Despite such vast knowledge base, linear ion traps continue to be an important research topic, particularly the effect of small perturbations
-
Effect of static gas background signal on momentum imaging in electron-molecule collision experiment Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-02-08 Sukanta Das, Suvasis Swain, Krishnendu Gope, Vishvesh Tadsare, Vaibhav S. Prabhudesai
The Velocity Slice Imaging technique has revolutionized charged particle-molecule interaction studies in general and electron-molecule interaction studies in particular. Multiple electrostatic lens assemblies are often used in spectrometers for resolving low kinetic energy fragments. In a crossed-beam experiment with an effusive molecular beam as a target, the background gas forms a strong extended
-
A discussion with Richard O'Hair regarding his life and career Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-02-07 Richard A.J. O'Hair, Veronica M. Bierbaum
-
Sodiation of melittin, cytochrome c, and ubiquitin studied by electrospray mass spectrometry: Stabilities of α-helix and β-sheet in basic solutions Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-02-05 Kenzo Hiraoka, Satoshi Ninomiya, Stephanie Rankin-Turner, Satoko Akashi
Metal ions play major roles in the functioning of biological systems. In our previous work, site-specific sodiation of gramicidin S (G), which is a cyclic antiparallel β-sheet consisting of four intramolecular N–H⋅⋅⋅OC hydrogen bonds, was examined. It was found that amide N–H bonds in [G + nH] with n = 1 and 2 were deprotonated to form [G + nH − mH + mNa] with m up to 7 and 8, respectively, in a 1
-
Is the first step in MALDI in-source decay electron transfer or hydrogen atom abstraction? Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-02-03 Daiki Asakawa
-
Exploring the unimolecular chemistry of protonated limonene and α-terpineol Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-01-30 Edgar White Buenger, Kian Mansour, Paul M. Mayer
-
-
-
-
Advances in secondary electrospray ionization for breath analysis and volatilomics Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-02-02 Cedric Wüthrich, Stamatios Giannoukos
-
Infrared multiple photon dissociation spectra of cesiated complexes of the aliphatic amino acids: Challenges for conformational-space calculations by density functional theory Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-01-26 P.B. Armentrout, Ryan P. Steele, Brandon C. Stevenson, Roland M. Jones, Jonathan Martens, Giel Berden, Jos Oomens
-
Proof of principle for enhanced resolution multi-pass methods for the astral analyzer Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-01-29 Hamish Stewart, Dmitry Grinfeld, Bernd Hagedorn, Robert Ostermann, Alexander Makarov, Christian Hock
-
A multichannel phase-locked waveform generator for a rotating electric field mass analyzer Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-01-29 Michael F. Espenship, Gregory Eakins, Julia Laskin
-
The IJMS Young Scientist Feature: A special article collection featuring perspectives and critical insights from early career mass spectrometrists around the globe Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-01-12 Julia Laskin, Zheng Ouyang, Isabelle Fournier, Stephen Blanksby
Abstract not available
-
-
-
-
Nonlinear frequency modulation for Fourier transform ion mobility mass spectrometry improves experimental efficiency Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-01-09 Elvin R. Cabrera, Robert L. Schrader, Thomas E. Walker, Arthur Laganowsky, David H. Russell, Brian H. Clowers
-
A remembrance of John B. Fenn on the 20th anniversary of his 2002 Nobel Prize in Chemistry Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2024-01-03 M. Labowsky, P.J. Gale
Abstract not available
-
Development of a portable gas chromatography linear ion trap mass spectrometer (GC-LIT-MS) for VOCs analysis in water Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-12-30 Qiu Junwei, Xu Kai, Zhang Tao, Zhu Huijun, Zhang Shuo, Lu Xinxin, Li Xiaoxu
-
Gas-phase Ni(II) affinities of alternative metal binding peptides from competitive threshold collision-induced dissociation Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-12-30 Perfect Asare, Kwabena N. Senyah, Jonathan D. Wilcox, Jovany Morales, Laurence A. Angel
-
Determining protonation site in fentanyl protomers using ion mobility-aligned MS/MS fragmentation Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-12-14 Ralph Aderorho, Christopher D. Chouinard
-
Detection of emerging disinfection by-products by reversed-phase ion-pair chromatography electrospray-ionization mass spectrometry in drinking water Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-12-15 Bhekumuzi P. Gumbi, Leon J. Khoza, Nokwanda Hendricks, Gbadebo C. Adeyinka, Pinkie Ntola, Siyabonga S. Ndlela, Patrick G. Ndungu
-
Proteomic analysis of N-glycosylation of the human placenta between preeclampsia and normal pregnancies Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-12-12 Guangjin Qu, Qiqi Luo, Panpan Hu, Kun Huang, Feifei Hu, Mingli Huang, Shanshun Luo, Yue Li
-
Resolving metal binding properties within subunits of a multimeric enzyme Mnx by surface induced dissociation and native ion mobility mass spectrometry Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-11-25 Deseree J. Reid, Stephanie M. Thibert, Jesse W. Wilson, Alexandra V. Soldatova, Bradley M. Tebo, Thomas G. Spiro, Mowei Zhou
-
Quality by design optimization and validation of a HPTLC-MS method for simultaneous estimation of paracetamol and prochlorperazine from bulk and formulation Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-11-24 Shubhangee S. Gaikwad, Saurabh D. Kalkate, Amruta A. Bankar, Amol S. Bansode
-
Gas-phase ion chemistry of [B12X12]2− (X = F, Cl, Br, I, CN). A brief review of twelve years of researching twelve−vertexed dianions and their fragments Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-11-19 Jonas Warneke
-
Surface-induced dissociation of protein complex ions in a modified electrostatic linear ion trap Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-11-19 Ian J. Carrick, Joshua T. Johnson, Scott A. McLuckey
-
Advanced motion tracking for interactive mass spectrometry imaging (IMSI) Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-11-15 Florian Kluibenschedl, Anna Ploner, Christina Meisenbichler, Robert Konrat, Thomas Müller
-
Triboelectric nanogenerators: Low-cost power supplies for improved electrospray ionization Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-11-10 Daniel D. Vallejo, Joseph L. Corstvet, Facundo M. Fernández
-
A multi-reflection time-of-flight mass spectrometer for the offline ion source of the PUMA experiment Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-10-31 M. Schlaich, J. Fischer, P. Fischer, C. Klink, A. Obertelli, A. Schmidt, L. Schweikhard, F. Wienholtz
-
-
-
Triboelectric nanogenerator-coated blade spray mass spectrometry for volume-limited drug analysis Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-10-20 Xin Ma, Facundo M. Fernández
-
-
-
IR spectroscopic characterization of products of methane and cyclopropane activation by Ru cations Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-10-19 Frank J. Wensink, Deepak Pradeep, P.B. Armentrout, Joost M. Bakker
-
Determining gas-phase chelation of zinc, cadmium, and copper cations with HisHis dipeptide using action spectroscopy and theoretical calculations Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-10-18 Brandon C. Stevenson, Giel Berden, Jonathan Martens, Jos Oomens, P.B. Armentrout
-
Towards IMn with electrostatic drift fields: Resetting the potential of trapped ions between dimensions of ion mobility Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-10-17 Benjamin P. Zercher, Yuan Feng, Matthew F. Bush
-
Absolute quantitation of peptides and proteins by coulometric mass spectrometry after derivatization Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-10-17 Praneeth Ivan Joel Fnu, Md Tanim-Al Hassan, Timothy Yaroshuk, Yongling Ai, Hao Chen
-
Classification of electrospray axial regimes as revealed by spray current measurements Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-10-13 Ioan Marginean
-
Measuring protein unfolding thermodynamic stability in one minute with digital temperature control-equipped nanoESI-mass spectrometry Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-10-04 Jun Liu, Yamei Wang, Xiaoli Wang, Weida Qin, Gongyu Li
-
Method validation with associated measurement of uncertainty for determination of pyrethroid in lanolin using gas chromatography–mass spectrometry Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-10-04 Neha Gupta, S.K. Nayak, Mukul Das, Khalid Bashir, Kulsum Jan
-
Mass spectrometry analysis of drugs using an integrated thermal desorption corona discharge ionization device Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-10-04 Qin Yang, Shenshu Chen, Yaqing Li, Taifeng Jiao, Lianghong Cheng, Quan Yu, Xinqiong Lu
-
Differentiation of aminohydroxypropanesulfonic acid structural isomers using tandem mass spectrometry-based methods Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-09-29 Le Thao Anh Nguyen, Chris J. Bowen, Laura Burchill, Spencer J. Williams, Richard A.J. O’Hair
-
Advances in nucleic acid sample preparation for electrospray ionization and matrix-assisted laser desorption ionization mass spectrometry Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-09-22 Max D. Sharin, Gabriella M. Floro, Kevin D. Clark
-
A novel self-attention model based on cosine self-similarity for cancer classification of protein mass spectrometry Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-09-19 Long Tang, Ping Xu, Lingyun Xue, Yian Liu, Ming Yan, Anqi Chen, Shundi Hu, Luhong Wen
-
Ionization of aluminum clusters Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-09-11 Avik Halder, Vitaly V. Kresin
-
Dual metal electrolysis in theta capillary for lipid analysis Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-09-13 Annesha Sengupta, Madison E. Edwards, Xin Yan
-
Design and performance of a dual stage asymmetric ion funnel interface Int. J. Mass Spectrom. (IF 1.8) Pub Date : 2023-09-04 Shuxiong Yan, Ke Ma, Yi Ren, Yi Hong, Zhengge Chen, Qi Huang, Hui Zhu, Zhengxu Huang