Combination of micro X-ray fluorescence spectroscopy and time-of-flight secondary ion mass spectrometry imaging for the marker-free detection of CeO2 nanoparticles in tissue sections

2018 ◽  
Vol 33 (3) ◽  
pp. 491-501 ◽  
Author(s):  
Lothar Veith ◽  
Dörthe Dietrich ◽  
Antje Vennemann ◽  
Daniel Breitenstein ◽  
Carsten Engelhard ◽  
...  

The description of nanoparticle distributions in tissue and associated effects is an important goal of nanotoxicology.

Author(s):  
K.K. Soni ◽  
D.B. Williams ◽  
J.M. Chabala ◽  
R. Levi-Setti ◽  
D.E. Newbury

In contrast to the inability of x-ray microanalysis to detect Li, secondary ion mass spectrometry (SIMS) generates a very strong Li+ signal. The latter’s potential was recently exploited by Williams et al. in the study of binary Al-Li alloys. The present study of Al-Li-Cu was done using the high resolution scanning ion microprobe (SIM) at the University of Chicago (UC). The UC SIM employs a 40 keV, ∼70 nm diameter Ga+ probe extracted from a liquid Ga source, which is scanned over areas smaller than 160×160 μm2 using a 512×512 raster. During this experiment, the sample was held at 2 × 10-8 torr.In the Al-Li-Cu system, two phases of major importance are T1 and T2, with nominal compositions of Al2LiCu and Al6Li3Cu respectively. In commercial alloys, T1 develops a plate-like structure with a thickness <∼2 nm and is therefore inaccessible to conventional microanalytical techniques. T2 is the equilibrium phase with apparent icosahedral symmetry and its presence is undesirable in industrial alloys.


Langmuir ◽  
2012 ◽  
Vol 28 (47) ◽  
pp. 16306-16317 ◽  
Author(s):  
Yolanda S. Hedberg ◽  
Manuela S. Killian ◽  
Eva Blomberg ◽  
Sannakaisa Virtanen ◽  
Patrik Schmuki ◽  
...  

1996 ◽  
Vol 11 (1) ◽  
pp. 229-235 ◽  
Author(s):  
E. Cattaruzza ◽  
R. Bertoncello ◽  
F. Trivillin ◽  
P. Mazzoldi ◽  
G. Battaglin ◽  
...  

Silica glass was implanted with chromium at the energy of 35 and 160 keV and at fluences varying from 1 × 1016 to 11 × 1016 ions cm−2. In a set of chromium-implanted samples significant amounts of carbon were detected. Samples were characterized by x-ray photoelectron spectroscopy, x-ray-excited Auger electron spectroscopy, secondary ion mass spectrometry, and Rutherford backscattering spectrometry. Chromium silicide and chromium oxide compounds were observed; the presence of carbon in the implanted layers induces the further formation of chromium carbide species. Thermodynamic considerations applied to the investigated systems supply indications in agreement with the experimental evidences.


2021 ◽  
Vol 93 (10) ◽  
pp. 4463-4471
Author(s):  
Caroline Bouvier ◽  
Helen Glanville ◽  
Laurence de Viguerie ◽  
Chiara Merucci ◽  
Philippe Walter ◽  
...  

Author(s):  
Lluís Yedra ◽  
C. N. Shyam Kumar ◽  
Alisa Pshenova ◽  
Esther Lentzen ◽  
Patrick Philipp ◽  
...  

The study demonstrates a new method to quantify Secondary Ion Mass Spectrometry (SIMS) images by using a synergetic combination of Energy Dispersive X-ray spectroscopy (EDX) and SIMS.


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