Results 1 to 10 of about 50,760 (148)
Secondary ion mass spectrometry imaging of Dictyostelium discoideum aggregation streams. [PDF]
PLoS ONE, 2014 High resolution imaging mass spectrometry could become a valuable tool for cell and developmental biology, but both, high spatial and mass spectral resolution are needed to enable this.
John Daniel DeBord +6 more
doaj +8 more sources
Time-of-flight secondary ion mass spectrometry in the helium ion microscope
Ultramicroscopy, 2019 A helium ion microscope, known for high resolution imaging and modification with helium or neon ions, has been equipped with a time-of-flight spectrometer for compositional analysis. Here we report on its design, implementation and show first results of this powerful add-on.
Klingner, N. +4 more
openaire +5 more sources
Biological tissue imaging with time‐of‐flight secondary ion mass spectrometry and cluster ion sources [PDF]
Journal of Mass Spectrometry, 2005 AbstractTime‐of‐flight secondary ion mass spectrometry (TOF‐SIMS) using liquid metal ion guns (LMIGs) is now sensitive enough to produce molecular‐ion images directly from biological tissue samples. Primary cluster ions strike a spot on the sample to produce a mass spectrum. An image of this sample is achieved by rastering the irradiated point over the
Brunelle, Alain +2 more
openaire +4 more sources
Electrospray propulsion time-of-flight secondary ion mass spectrometry diagnostic
Review of Scientific InstrumentsThe design and capability of a novel electrospray propulsion time-of-flight secondary ion mass spectrometry (TOF-SIMS) diagnostic are presented to investigate secondary species emission from surface impingement of energetic molecular ion plumes. Designed on the basis of traditional SIMS principles, this diagnostic provides information on the relative ...
Giuliana C. Hofheins +2 more
openaire +5 more sources
Identification of New Psychoactive Tryptamines 4-OH-MET and 4-AcO-DMT Using High Resolution Mass Spectrometry and Nuclear Magnetic Resonance Spectroscopy [PDF]
Fayixue Zazhi, 2021 Objective To detect the uncontrolled new psychoactive tryptamines involved in drug-related cases with high resolution mass spectrometry and nuclear magnetic resonance spectroscopy.
DING Ke-ran, NI Chun-fang, HE Si-yang, et al.
doaj +1 more source
High throughput discovery of thermo-responsive materials using water contact angle measurements and time-of-flight secondary ion mass spectrometry [PDF]
, 2013 Switchable materials that alter their chemical or physical properties in response to external stimuli allow for temporal control of material-biological interactions, thus, are of interest for many biomaterial applications.
Alexander, Morgan R. +6 more
core +4 more sources
Frontiers in Chemistry, 2023 Detection of per- and polyfluoroalkyl substances (PFASs) is crucial in environmental mitigation and remediation of these persistent pollutants. We demonstrate that time-of-flight secondary ion mass spectrometry (ToF-SIMS) is a viable technique to analyze
Xiao-Ying Yu +7 more
doaj +1 more source
Scientific 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
CHIMIA, 2022 Secondary Ion Mass Spectrometry (SIMS) extracts chemical, elemental, or isotopic information about a localized area of a solid target by performing mass spectrometry on secondary ions sputtered from its surface by the impact of a beam of charged ...
Johanna Marin Carbonne +8 more
doaj +1 more source
Journal of Materials Research and Technology, 2021 In a chalcopyrite and pyrite flotation system, the effect and mechanism of organic depressant sodium dimethyl dithiocarbamate on the hydrophobicity of chalcopyrite and pyrite were studied.
Xu Bai, Jian Liu, Shuming Wen, Yilin Lin
doaj +1 more source