Direct Analysis in Real Time (DART) of an Organothiophosphate at Ultrahigh Resolution by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry and Tandem Mass Spectrometry

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Paper describes results of an analysis of the organothiophosphate malathion using DART-Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry (MS) and tandem mass spectrometry (MS/MS).

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8 p.

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Prókai, László, 1958- & Stevens, Stanley M. January 16, 2016.

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Paper describes results of an analysis of the organothiophosphate malathion using DART-Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry (MS) and tandem mass spectrometry (MS/MS).

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8 p.

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Abstract: Direct analysis in real time (DART) is a recently developed ambient ionization technique for mass spectrometry to enable rapid and sensitive analyses with little or no sample preparation. After swab-based field sampling, the organothiophosphate malathion was analyzed using DART-Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry (MS) and tandem mass spectrometry (MS/MS). Mass resolution was documented to be over 800,000 in full-scan MS mode and over 1,000,000 for an MS/MS product ion produced by collision-induced dissociation of the protonated analyte. Mass measurement accuracy below 1 ppm was obtained for all DART-generated ions that belonged to the test compound in the mass spectra acquired using only external mass calibration. This high mass measurement accuracy, achievable at present only through FTMS, was required for unequivocal identification of the corresponding molecular formulae.

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  • International Journal of Molecular Sciences, 17(1), MDPI, January 16, 2016, pp. 1-8

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  • Publication Title: International Journal of Molecular Sciences
  • Volume: 17
  • Issue: 1
  • Peer Reviewed: Yes

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  • January 16, 2016

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  • May 11, 2020, 3:41 p.m.

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  • Dec. 5, 2023, 10:33 a.m.

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Prókai, László, 1958- & Stevens, Stanley M. Direct Analysis in Real Time (DART) of an Organothiophosphate at Ultrahigh Resolution by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry and Tandem Mass Spectrometry, article, January 16, 2016; [Basel, Switzerland]. (https://digital.library.unt.edu/ark:/67531/metadc1638194/: accessed May 25, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Health Science Center.

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