Results 41 to 50 of about 249,637 (396)

Element Mapping by X-Ray Fluorescence Spectrometry

open access: yesAnalytical Sciences, 1985
An energy-dispersive system is described for element mapping by X-ray fluorescence spectrometry. Unlike Gruker′s tomographic system, a point-shaped beam from an X-ray tube is used for direct mapping. Typical spatial resolution of the system is about 260μm.
Tomoya Arai   +7 more
openaire   +3 more sources

Development of X-ray fluorescence technique for the uranium determination in Mongolian coal, coal ash, and phosphate ore [PDF]

open access: yes, 2014
The results of the determination of uranium in Mongolian brown coal, coal ash, phosphate rock, and technological samples by X-ray fluorescence (XRF) spectrometry are presented.
Bolortuya, D.   +3 more
core   +2 more sources

Determination of silver nanoparticles in complex aqueous matrices by total reflection X-ray fluorescence spectrometry combined with cloud point extraction

open access: yes, 2018
The development of methods for the analysis of silver nanoparticles (AgNPs) is of special relevance to achieve detailed insights into the fate, transport and exposure of these emerging pollutants in the environment.
Laura Torrent   +3 more
semanticscholar   +1 more source

Brucella NyxA and NyxB dimerization enhances effector function during infection

open access: yesFEBS Letters, EarlyView.
Brucella abortus thrives inside cells thanks to the translocation of effector proteins that fine‐tune cellular functions. NyxA and NyxB are two effectors that destabilize the nucleolar localization of their host target, SENP3. We show that the Nyx proteins directly interact with each other and that their dimerization is essential for their function ...
Lison Cancade‐Veyre   +4 more
wiley   +1 more source

Tonic signaling of the B‐cell antigen‐specific receptor is a common functional hallmark in chronic lymphocytic leukemia cell phosphoproteomes at early disease stages

open access: yesMolecular Oncology, EarlyView.
B‐cell chronic lymphocytic leukemia (B‐CLL) and monoclonal B‐cell lymphocytosis (MBL) show altered proteomes and phosphoproteomes, analyzed using mass spectrometry, protein microarrays, and western blotting. Identifying 2970 proteins and 316 phosphoproteins, including 55 novel phosphopeptides, we reveal BCR and NF‐kβ/STAT3 signaling in disease ...
Paula Díez   +17 more
wiley   +1 more source

METHODOLOGY FOR DATA COLLECTION IN SIMULATED IRRADIATIONS USING MONTE CARLO TECHNIQUES ON DICOM IMAGES FOR X-RAY FLUORESCENCE EMISSIONS LOCALIZATION IN HIGH ATOMIC NUMBER MATERIALS

open access: yesAnales (Asociación Física Argentina)
X-ray Fluorescence Computed Tomography (XFCT) has emerged as a promising modality owing to the availability of high-energy polychromatic X-ray sources in the laboratory.
Nicolás E. Martín   +3 more
doaj   +1 more source

Study on Petrological and Mineralogical Characteristics of the Ningxia Helan Stone by X-ray Fluorescence Spectrometry and X-ray Diffraction

open access: yesYankuang ceshi, 2018
The Ningxia Helan Stone is one of the well-known stones that are used for making inkslab in China. The development and application of Helan Stone is becoming more and more widespread, and therefore, it is necessary to carry out a systematic study.
MENG Chang-feng, XUE Jun-hui
doaj   +1 more source

Development of Container Free Sample Exposure for Synchrotron X-ray Footprinting. [PDF]

open access: yes, 2020
The method of X-ray footprinting and mass spectrometry (XFMS) on large protein assemblies and membrane protein samples requires high flux density to overcome the hydroxyl radical scavenging reactions produced by the buffer constituents and the total ...
Chen, Yan   +4 more
core   +1 more source

Determination of ADP/ATP translocase isoform ratios in malignancy and cellular senescence

open access: yesMolecular Oncology, EarlyView.
The individual functions of three isoforms exchanging ADP and ATP (ADP/ATP translocases; ANTs) on the mitochondrial membrane remain unclear. We developed a method for quantitatively differentiating highly similar human ANT1, ANT2, and ANT3 using parallel reaction monitoring. This method allowed us to assess changes in translocase levels during cellular
Zuzana Liblova   +18 more
wiley   +1 more source

Synchrotron X-ray fluorescence analysis in environmental and earth sciences

open access: yesEPJ Web of Conferences, 2010
Compared to other microscopic analytical tools X-ray microscopy techniques have the advantage that the large penetration depth of X-rays in matter allows one to investigate the interior of an object without destructive sample preparation.
Adams F.
doaj   +1 more source

Home - About - Disclaimer - Privacy