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Kasi V. Somayajula - One of the best experts on this subject based on the ideXlab platform.

  • Tris (perfluoroalkylethyl)silyl alkyl amines as calibration standards for electron ionization mass spectrometry in the mass range of 100-3000 Da
    'Elsevier BV', 2001
    Co-Authors: Vn Fishman, Linclau B, Dp Curran, Kasi V. Somayajula
    Abstract:

    A new fluorinated compound mixture has been developed for the calibration of the double focusing mass spectrometer in the mass range of 100-3000 Da in the positive electron ionization (EI) mode. Current calibration standards for EI have either limited mass range [Perfluorotributylamine (PFTBA), perfluorokerosene (PFK), s-triazines (TRIS)] or poor peak intensities with significant chemical background in the instrument for several days (perfluoroalkyl phosphazine). The newly synthesized fluorinated silyl alkyl amines mixture is proposed as a reference/calibration standard for EI-MS. This standard produced abundant parent and fragment ions across the entire mass range without any memory effect. Copyright © 2001 American Society for Mass Spectrometry

  • TRIS (perfluoroalkylethyl)silyl alkyl amines as calibration standards for electron ionization mass spectrometry in the mass range of 100–3000 Da
    Journal of the American Society for Mass Spectrometry, 2001
    Co-Authors: Vyacheslav N. Fishman, Bruno Linclau, Dennis P. Curran, Kasi V. Somayajula
    Abstract:

    A new fluorinated compound mixture has been developed for the calibration of the double focusing mass spectrometer in the mass range of 100–3000 Da in the positive electron ionization (EI) mode. Current calibration standards for EI have either limited mass range [Perfluorotributylamine (PFTBA), perfluorokerosene (PFK), s-triazines (TRIS)] or poor peak intensities with significant chemical background in the instrument for several days (perfluoroalkyl phosphazine). The newly synthesized fluorinated silyl alkyl amines mixture is proposed as a reference/calibration standard for EI-MS. This standard produced abundant parent and fragment ions across the entire mass range without any memory effect.

Vyacheslav N. Fishman - One of the best experts on this subject based on the ideXlab platform.

  • TRIS (perfluoroalkylethyl)silyl alkyl amines as calibration standards for electron ionization mass spectrometry in the mass range of 100–3000 Da
    Journal of the American Society for Mass Spectrometry, 2001
    Co-Authors: Vyacheslav N. Fishman, Bruno Linclau, Dennis P. Curran, Kasi V. Somayajula
    Abstract:

    A new fluorinated compound mixture has been developed for the calibration of the double focusing mass spectrometer in the mass range of 100–3000 Da in the positive electron ionization (EI) mode. Current calibration standards for EI have either limited mass range [Perfluorotributylamine (PFTBA), perfluorokerosene (PFK), s-triazines (TRIS)] or poor peak intensities with significant chemical background in the instrument for several days (perfluoroalkyl phosphazine). The newly synthesized fluorinated silyl alkyl amines mixture is proposed as a reference/calibration standard for EI-MS. This standard produced abundant parent and fragment ions across the entire mass range without any memory effect.

Dennis P. Curran - One of the best experts on this subject based on the ideXlab platform.

  • TRIS (perfluoroalkylethyl)silyl alkyl amines as calibration standards for electron ionization mass spectrometry in the mass range of 100–3000 Da
    Journal of the American Society for Mass Spectrometry, 2001
    Co-Authors: Vyacheslav N. Fishman, Bruno Linclau, Dennis P. Curran, Kasi V. Somayajula
    Abstract:

    A new fluorinated compound mixture has been developed for the calibration of the double focusing mass spectrometer in the mass range of 100–3000 Da in the positive electron ionization (EI) mode. Current calibration standards for EI have either limited mass range [Perfluorotributylamine (PFTBA), perfluorokerosene (PFK), s-triazines (TRIS)] or poor peak intensities with significant chemical background in the instrument for several days (perfluoroalkyl phosphazine). The newly synthesized fluorinated silyl alkyl amines mixture is proposed as a reference/calibration standard for EI-MS. This standard produced abundant parent and fragment ions across the entire mass range without any memory effect.

Bruno Linclau - One of the best experts on this subject based on the ideXlab platform.

  • TRIS (perfluoroalkylethyl)silyl alkyl amines as calibration standards for electron ionization mass spectrometry in the mass range of 100–3000 Da
    Journal of the American Society for Mass Spectrometry, 2001
    Co-Authors: Vyacheslav N. Fishman, Bruno Linclau, Dennis P. Curran, Kasi V. Somayajula
    Abstract:

    A new fluorinated compound mixture has been developed for the calibration of the double focusing mass spectrometer in the mass range of 100–3000 Da in the positive electron ionization (EI) mode. Current calibration standards for EI have either limited mass range [Perfluorotributylamine (PFTBA), perfluorokerosene (PFK), s-triazines (TRIS)] or poor peak intensities with significant chemical background in the instrument for several days (perfluoroalkyl phosphazine). The newly synthesized fluorinated silyl alkyl amines mixture is proposed as a reference/calibration standard for EI-MS. This standard produced abundant parent and fragment ions across the entire mass range without any memory effect.

Kimberly Strong - One of the best experts on this subject based on the ideXlab platform.

  • Temperature-dependent absorption cross-sections of Perfluorotributylamine
    Journal of Molecular Spectroscopy, 2016
    Co-Authors: Paul J. Godin, Angela C. Hong, Scott A. Mabury, Alex Cabaj, Stephanie Conway, Karine Le Bris, Kimberly Strong
    Abstract:

    Abstract Cross-sections of Perfluorotributylamine (PFTBA) were derived from Fourier transform spectroscopy at 570–3400 cm −1 with a resolution of 0.1 cm −1 over a temperature range of 298–344 K. These results were compared to theoretical density functional theory (DFT) calculations and to previous measurements of PFTBA made at room temperature. DFT calculations were performed using the B3LYP method and the 6-311G(d,p) basis set. We find good agreement between our experimentally derived results, DFT calculations, and previously published data. No significant temperature dependence in the PFTBA cross-sections was observed for the temperature range studied. We calculate an average integrated band strength of 7.81 × 10 −16  cm/molecule for PFTBA over the spectral range studied. Radiative efficiencies (RE) and global warming potentials (GWP) for PFTBA were also derived. The calculated radiative efficiencies show no dependence on temperature and agree with prior publications. We find an average RE of 0.77 Wm −2  ppbv −1 and a range of GWP from 6874 to 7571 depending on the lifetime used. Our findings are consistent with previous studies and increase our confidence in the value of the GWP of PFTBA.

  • Temperature Dependent Absorption Cross-sections of PFTBA
    2014
    Co-Authors: Paul J. Godin, Scott A. Mabury, Stephanie Conway, Angela Hong, Kimberly Strong
    Abstract:

    A recent paper by Hong et al. (2013) determined that Perfluorotributylamine (PFTBA) has the highest radiative efficiency of any compound detected in the atmosphere [1]. PFTBA is a fully-fluorinated liquid commonly used in electronic reliability and quality testing. PFTBA vapour can be considered a potential greenhouse gas due being radiatively active in the mid-IR spectral region and having a long atmospheric lifetime due to no known sinks.