Wiesendanger, Reto; Tulej, Marek; Grimaudo, Valentine; Cedeño-López, Alena; Lukmanov, Rustam; Riedo, Andreas; Wurz, Peter (2018). A method for improvement of mass resolution and isotope accuracy for laser ablation time-of-flight mass spectrometers. Journal of chemometrics, 33(1), e3081. Wiley 10.1002/cem.3081
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07-007-3-0 - A simple method for improvement of mass resolution and isotope accuracy for laser ablation and ionisation time of flight mass spectrom.pdf - Submitted Version Available under License Publisher holds Copyright. Download (1MB) | Preview |
Accumulation of spectra is a common approach for improvement of the signalto‐
noise ratio (SNR) in mass spectrometry. However, severe degradation of the
overall spectrum can occur if some individual mass spectra, affected by peak
broadening, are included in the accumulation process. In this contribution,
we discuss potential sources and effects of spectral distortions by using examples
from mass spectra acquired by our miniature laser ablation/ionisation
time‐of‐flight mass spectrometer. We show how recent developments in acquisition
systems enable to identify individual spectra subjected to peak broadening
and present a filtering method capable of systematic and reproducible
exclusion of such spectra from the accumulation process. We show that the
method can be used on a wide range of materials and present a detailed case
study performed on a trevorite mineral sample. Using this method, improvements
of the isotope accuracy of Si, Ni, and Cr by factors between 1.6 and
7.7 were achieved. Finally, we discuss the limitations of the method and provide
complementary analysis of other materials in the supplementary documents
provided with this contribution.
KEYWORDS
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP) 08 Faculty of Science > Physics Institute |
UniBE Contributor: |
Wiesendanger, Reto, Tulej, Marek, Riedo, Valentine, Cedeño López, Alena, Lukmanov, Rustam, Wurz, Peter |
Subjects: |
500 Science > 570 Life sciences; biology 500 Science > 540 Chemistry 500 Science > 520 Astronomy 600 Technology > 620 Engineering 500 Science > 530 Physics |
ISSN: |
0886-9383 |
Publisher: |
Wiley |
Language: |
English |
Submitter: |
Dora Ursula Zimmerer |
Date Deposited: |
28 Nov 2018 12:36 |
Last Modified: |
05 Dec 2022 15:19 |
Publisher DOI: |
10.1002/cem.3081 |
BORIS DOI: |
10.7892/boris.121379 |
URI: |
https://boris.unibe.ch/id/eprint/121379 |
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