Optimization of the Entropy-Based Wavelet Method for Removing Strong RF and AC Interferences in a Charge Detection Linear Ion Trap Mass Spectrometer Article Swipe
Chien Mau Dang
,
Avinash A. Patil
,
Thị Khánh Ly Lại
,
Szu-Wei Chou
,
Trang Hoang
,
Mhar Ian Cua Estayan
,
Wen‐Ping Peng
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.1021/acs.analchem.4c06069
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.1021/acs.analchem.4c06069
We developed an entropy-based wavelet method to effectively remove interference from strong radio frequency (RF) and auxiliary alternating current (AC) fields in a linear ion trap (LIT) mass spectrometer coupled to a charge sensing particle detector (CSPD). By optimizing the energy-to-Shannon entropy, we identified the optimal mother wavelet family and decomposition level and determined suitable threshold values based on the median of sub-band coefficients at each decomposition level. These thresholds were applied as rigid criteria across all decomposition levels to eliminate noise interferences and avoid the arbitrary choice of the threshold. This entropy wavelet-based method successfully denoised high-mass protein mass spectra, achieving significant improvements in signal-to-noise ratio (S/N) for immunoglobulin G (IgG) and alpha-2-macroglobulin (A2M) ions, with increases of 68.03% and 81.73%, respectively. Our method surpasses previously reported baseline correction techniques, such as orthogonal wavelet packet decomposition (OWPD) filtering, and enhances the sensitivity of LIT mass spectrometry (LIT-MS) in analyzing high-mass protein ions.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1021/acs.analchem.4c06069
- https://pubs.acs.org/doi/pdf/10.1021/acs.analchem.4c06069?ref=article_openPDF
- OA Status
- hybrid
- Cited By
- 1
- References
- 36
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4407954194
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- OpenAlex ID
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https://openalex.org/W4407954194Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1021/acs.analchem.4c06069Digital Object Identifier
- Title
-
Optimization of the Entropy-Based Wavelet Method for Removing Strong RF and AC Interferences in a Charge Detection Linear Ion Trap Mass SpectrometerWork title
- Type
-
articleOpenAlex work type
- Language
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enPrimary language
- Publication year
-
2025Year of publication
- Publication date
-
2025-02-26Full publication date if available
- Authors
-
Chien Mau Dang, Avinash A. Patil, Thị Khánh Ly Lại, Szu-Wei Chou, Trang Hoang, Mhar Ian Cua Estayan, Wen‐Ping PengList of authors in order
- Landing page
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https://doi.org/10.1021/acs.analchem.4c06069Publisher landing page
- PDF URL
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https://pubs.acs.org/doi/pdf/10.1021/acs.analchem.4c06069?ref=article_openPDFDirect link to full text PDF
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YesWhether a free full text is available
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hybridOpen access status per OpenAlex
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https://pubs.acs.org/doi/pdf/10.1021/acs.analchem.4c06069?ref=article_openPDFDirect OA link when available
- Concepts
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Chemistry, Quadrupole ion trap, Ion trap, Ion, Mass spectrometry, Analytical Chemistry (journal), Charge-coupled device, Entropy (arrow of time), Atomic physics, Chromatography, Optics, Quantum mechanics, Physics, Organic chemistryTop concepts (fields/topics) attached by OpenAlex
- Cited by
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1Total citation count in OpenAlex
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2025: 1Per-year citation counts (last 5 years)
- References (count)
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36Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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