Results 21 to 30 of about 164,512 (299)

Near-daily reconstruction of tropical intertidal limpet life-history using secondary-ion mass spectrometry

open access: yesCommunications Earth & Environment, 2021
High-resolution rocky intertidal environment and life-history of tropical limpets, as determined by secondary ion mass spectrometry stable oxygen isotopic analysis of modern and historical mollusc shells.
Anthony Mau   +6 more
doaj   +1 more source

Gold and silver nanoparticle-assisted laser desorption ionization mass spectrometry compatible with secondary ion mass spectrometry for lipid analysis [PDF]

open access: yes, 2014
To provide a convenient organic matrix-free spray-on sample preparation for laser desorption ionization (LDI) that is compatible with secondary ion mass spectrometry (SIMS) imaging mass spectrometry (IMS) techniques, silver and gold nanoparticles (NPs ...
Per Malmberg   +15 more
core   +1 more source

Advances in Ion Mobility Spectrometry-Mass Spectrometry (IMS-MS)-Based Techniques for Elucidating Higher-Order Protein Structures [PDF]

open access: yes, 2020
Despite its great success in the field of proteomics, mass spectrometry has limited use for determining structural details of peptides, proteins, and their assemblies.
SEO, JONGCHEOL
core   +1 more source

Active learning for convenient annotation and classification of secondary ion mass spectrometry images [PDF]

open access: yes, 2013
Digital staining for the automated annotation of mass spectrometry imaging (MSI) data has previously been achieved using state-of-the-art classifiers such as random forests or support vector machines (SVMs).
Köthe, U.   +7 more
core   +1 more source

Ion Imaging of Native Protein Complexes Using Orthogonal Time-of-Flight Mass Spectrometry and a Timepix Detector [PDF]

open access: yes, 2021
Native mass spectrometry (native MS) has emerged as a powerful technique to study the structure and stoichiometry of large protein complexes. Traditionally, native MS has been performed on modified time-of-flight (TOF) systems combined with detectors ...
Heck, A.J.R. (Albert)   +35 more
core   +1 more source

Degrees of freedom effect on fragmentation in tandem mass spectrometry of singly charged supramolecular aggregates of sodium sulfonates [PDF]

open access: yes, 2013
The characteristic collision energy (CCE) to obtain 50% fragmentation of positively and negatively single charged non-covalent clusters has been measured.
TURCO LIVERI, Vincenzo   +12 more
core   +1 more source

Adaptive Control of Ion Yield in Femtosecond Laser Post-ionization for Secondary Ion Mass Spectrometry

open access: yesScientific Reports, 2017
Secondary ion mass spectrometry is an excellent technique of analytical chemistry, where primary ions sputter a solid sample generating the secondary ions which are determined.
Dusan Lorenc   +3 more
doaj   +1 more source

Time-of-flight secondary ion mass spectrometry fragment regularity in gallium-doped zinc oxide thin films

open access: yesScientific Reports, 2021
Time-of-flight secondary ion mass spectrometry fragment analysis remains a challenging task. The fragment appearance regularity (FAR) rule is particularly useful for two-element compounds such as ZnO.
K. G. Saw, S. R. Esa
doaj   +1 more source

Analysis of liposome model systems by time-of-flight secondary ion mass spectrometry [PDF]

open access: yes, 2014
Time-of-flight secondary ion mass spectrometry (ToF-SIMS) is an important technique for studying chemical composition of micrometer scale objects because of its high spatial resolution imaging capabilities and chemical specificity. In this work, we focus
Per Malmberg   +25 more
core   +1 more source

Real-time Detection and Tandem Mass Spectrometry of Secondary Organic Aerosols with a Quadrupole Ion Trap [PDF]

open access: yes, 2020
An aerosol quadrupole ion trap mass spectrometer is reported that is sensitive, has unique capabilities to perform chemical ionization, is operated in real-time, and is able to perform tandem mass spectrometry.
Richard M., Kamens   +3 more
core   +1 more source

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