Laser ablation of microdroplets for copper isotopic analysis via MC-ICP-MS. Analysis of serum microsamples for the diagnosis and follow-up treatment of Wilson's disease

Author(s):  
M. Carmen García-Poyo ◽  
Sylvain Bérail ◽  
Anne Laure Ronzani ◽  
Luis Rello ◽  
Elena García-González ◽  
...  

The deposition of microdroplets onto silicon wafers followed by drying and fsLA is evaluated by MC-ICP-MS Cu isotopic analysis.

Chemosensors ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 77
Author(s):  
Davide Spanu ◽  
Gilberto Binda ◽  
Marcello Marelli ◽  
Laura Rampazzi ◽  
Sandro Recchia ◽  
...  

A laser ablation–inductively coupled plasma–mass spectrometry (LA–ICP–MS) based method is proposed for the quantitative determination of the spatial distribution of metal nanoparticles (NPs) supported on planar substrates. The surface is sampled using tailored ablation patterns and the data are used to define three-dimensional functions describing the spatial distribution of NPs. The volume integrals of such interpolated surfaces are calibrated to obtain the mass distribution of Ag NPs by correlation with the total mass of metal as determined by metal extraction and ICP–MS analysis. Once this mass calibration is carried out on a sacrificial sample, quantifications can be performed over multiple samples by a simple micro-destructive LA–ICP–MS analysis without requiring the extraction/dissolution of metal NPs. The proposed approach is here tested using a model sample consisting of a low-density polyethylene (LDPE) disk decorated with silver NPs, achieving high spatial resolution over cm2-sized samples and very high sensitivity. The developed method is accordingly a useful analytical tool for applications requiring both the total mass and the spatial distribution of metal NPs to be determined without damaging the sample surface (e.g., composite functional materials and NPs, decorated catalysts or electrodic materials).


2014 ◽  
Vol 29 (5) ◽  
pp. 903 ◽  
Author(s):  
Jitka Míková ◽  
Jan Košler ◽  
Michael Wiedenbeck

2001 ◽  
Vol 48 (5) ◽  
pp. 757 ◽  
Author(s):  
E. A. Belousova ◽  
W. L. Griffin ◽  
S. R. Shee ◽  
S. E. Jackson ◽  
S. Y. O'Reilly

2019 ◽  
Vol 34 (6) ◽  
pp. 1223-1232 ◽  
Author(s):  
Hai-Ou Gu ◽  
He Sun ◽  
Fangyue Wang ◽  
Can Ge ◽  
Taofa Zhou

An isobaric interference correction model was proposed for the in situ Hf isotopic analysis of zircons with high Yb/Hf ratios using LA-MC-ICP-MS.


2017 ◽  
Vol 44 ◽  
pp. 26-31 ◽  
Author(s):  
Oliver Hachmöller ◽  
Andree Zibert ◽  
Hans Zischka ◽  
Michael Sperling ◽  
Sara Reinartz Groba ◽  
...  

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