A non-linear asymmetric error function-based least mean square approach for the analysis of multicomponent mass spectra measured by membrane inlet mass spectrometry

Raimo Ketola, Marja Ojala, Veikko Komppa, Tapio Kotiaho (Corresponding Author), Jouni Juujärvi, J. Heikkonen

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Abstract

A nonlinear asymmetric error function‐based least mean square method (NALMS) for the deconvolution of identity and quantity of individual compounds based on the multicomponent mass spectra measured by membrane inlet mass spectrometry (MIMS) was developed and detailed testing results are presented. The method utilizes the complete mass spectra of the compounds present in a reference library during the calculation of a solution for an unknown multicomponent mass spectrum. The results presented here and in our previous publications in which the NALMS method was utilized show that the method can be used to separate complex multicomponent electron ionization mass spectra into their individual constituents, thus considerably improving the selectivity of MIMS.
Original languageEnglish
Pages (from-to)654-662
Number of pages9
JournalRapid Communications in Mass Spectrometry
Volume13
Issue number8
DOIs
Publication statusPublished - 1999
MoE publication typeA1 Journal article-refereed

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Mass spectrometry
Membranes
Deconvolution
Ionization
Electrons
Testing

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Ketola, Raimo ; Ojala, Marja ; Komppa, Veikko ; Kotiaho, Tapio ; Juujärvi, Jouni ; Heikkonen, J. / A non-linear asymmetric error function-based least mean square approach for the analysis of multicomponent mass spectra measured by membrane inlet mass spectrometry. In: Rapid Communications in Mass Spectrometry. 1999 ; Vol. 13, No. 8. pp. 654-662.
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A non-linear asymmetric error function-based least mean square approach for the analysis of multicomponent mass spectra measured by membrane inlet mass spectrometry. / Ketola, Raimo; Ojala, Marja; Komppa, Veikko; Kotiaho, Tapio (Corresponding Author); Juujärvi, Jouni; Heikkonen, J.

In: Rapid Communications in Mass Spectrometry, Vol. 13, No. 8, 1999, p. 654-662.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - A non-linear asymmetric error function-based least mean square approach for the analysis of multicomponent mass spectra measured by membrane inlet mass spectrometry

AU - Ketola, Raimo

AU - Ojala, Marja

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AU - Kotiaho, Tapio

AU - Juujärvi, Jouni

AU - Heikkonen, J.

PY - 1999

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AB - A nonlinear asymmetric error function‐based least mean square method (NALMS) for the deconvolution of identity and quantity of individual compounds based on the multicomponent mass spectra measured by membrane inlet mass spectrometry (MIMS) was developed and detailed testing results are presented. The method utilizes the complete mass spectra of the compounds present in a reference library during the calculation of a solution for an unknown multicomponent mass spectrum. The results presented here and in our previous publications in which the NALMS method was utilized show that the method can be used to separate complex multicomponent electron ionization mass spectra into their individual constituents, thus considerably improving the selectivity of MIMS.

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