Advanced Search
Display options
Filter resources
Text Availability
Article type
Publication date
Species
Language
Sex
Age
Showing 1 to 12 of 13 entries
Sorted by: Best Match Show Resources per page
Towards universal ambient ionization: direct elemental analysis of solid substrates using microwave plasma ionization.

The Analyst

Evans-Nguyen KM, Gerling J, Brown H, Miranda M, Windom A, Speer J.
PMID: 26979768
Analyst. 2016 Jun 21;141(12):3811-20. doi: 10.1039/c6an00176a. Epub 2016 Mar 16.

A microwave plasma was used for direct ambient ionization mass spectrometry of solid substrates, rapidly yielding atomic spectra without sample digestion or pre-treatment. Further, molecular spectra for the organic components of the substrate were obtained simultaneously, in an ambient...

Cite
Evans-Nguyen KM, Gerling J, Brown H, et al. Towards universal ambient ionization: direct elemental analysis of solid substrates using microwave plasma ionization. Analyst. 2016;141(12):3811-20doi: 10.1039/c6an00176a.
Evans-Nguyen, K. M., Gerling, J., Brown, H., Miranda, M., Windom, A., & Speer, J. (2016). Towards universal ambient ionization: direct elemental analysis of solid substrates using microwave plasma ionization. The Analyst, 141(12), 3811-20. https://doi.org/10.1039/c6an00176a
Evans-Nguyen, K M, et al. "Towards universal ambient ionization: direct elemental analysis of solid substrates using microwave plasma ionization." The Analyst vol. 141,12 (2016): 3811-20. doi: https://doi.org/10.1039/c6an00176a
Evans-Nguyen KM, Gerling J, Brown H, Miranda M, Windom A, Speer J. Towards universal ambient ionization: direct elemental analysis of solid substrates using microwave plasma ionization. Analyst. 2016 Jun 21;141(12):3811-20. doi: 10.1039/c6an00176a. Epub 2016 Mar 16. PMID: 26979768.
Copy Download .nbib Format: NLM
Surface Acoustic Wave Nebulization with Atmospheric-Pressure Chemical Ionization for Enhanced Ion Signal.

Analytical chemistry

Song L, You Y, Evans-Nguyen T.
PMID: 30481449
Anal Chem. 2019 Jan 02;91(1):912-918. doi: 10.1021/acs.analchem.8b03927. Epub 2018 Dec 10.

Many ambient desorption/ionization mass spectrometry (ADI-MS) techniques rely critically on thermal desorption. Meanwhile, the analyte classes that are successfully studied by any particular ADI-MS methods are strongly dependent on the type of ionization source. Generally, spray-based ionization sources favor...

Cite
Song L, You Y, Evans-Nguyen T. Surface Acoustic Wave Nebulization with Atmospheric-Pressure Chemical Ionization for Enhanced Ion Signal. Anal Chem. 2018;91(1):912-918doi: 10.1021/acs.analchem.8b03927.
Song, L., You, Y., & Evans-Nguyen, T. (2019). Surface Acoustic Wave Nebulization with Atmospheric-Pressure Chemical Ionization for Enhanced Ion Signal. Analytical chemistry, 91(1), 912-918. https://doi.org/10.1021/acs.analchem.8b03927
Song, Linxia, et al. "Surface Acoustic Wave Nebulization with Atmospheric-Pressure Chemical Ionization for Enhanced Ion Signal." Analytical chemistry vol. 91,1 (2019): 912-918. doi: https://doi.org/10.1021/acs.analchem.8b03927
Song L, You Y, Evans-Nguyen T. Surface Acoustic Wave Nebulization with Atmospheric-Pressure Chemical Ionization for Enhanced Ion Signal. Anal Chem. 2019 Jan 02;91(1):912-918. doi: 10.1021/acs.analchem.8b03927. Epub 2018 Dec 10. PMID: 30481449.
Copy Download .nbib Format: NLM
Inexpensive Ultrasonic Nebulization Coupled with Direct Current Corona Discharge Ionization Mass Spectrometry for Liquid Samples and Its Fundamental Investigations.

Analytical chemistry

Song L, You Y, Perdomo NR, Evans-Nguyen T.
PMID: 32662994
Anal Chem. 2020 Aug 18;92(16):11072-11079. doi: 10.1021/acs.analchem.0c00524. Epub 2020 Jul 28.

The concept of direct mass-spectrometric analysis, especially exploited by ambient desorption/ionization (ADI) methods, provides numerous means for convenient sample analysis. While many simple and versatile ionization sources have been developed, challenges lay in achieving efficient sample introduction. In previous...

Cite
Song L, You Y, Perdomo NR, et al. Inexpensive Ultrasonic Nebulization Coupled with Direct Current Corona Discharge Ionization Mass Spectrometry for Liquid Samples and Its Fundamental Investigations. Anal Chem. 2020;92(16):11072-11079doi: 10.1021/acs.analchem.0c00524.
Song, L., You, Y., Perdomo, N. R., & Evans-Nguyen, T. (2020). Inexpensive Ultrasonic Nebulization Coupled with Direct Current Corona Discharge Ionization Mass Spectrometry for Liquid Samples and Its Fundamental Investigations. Analytical chemistry, 92(16), 11072-11079. https://doi.org/10.1021/acs.analchem.0c00524
Song, Linxia, et al. "Inexpensive Ultrasonic Nebulization Coupled with Direct Current Corona Discharge Ionization Mass Spectrometry for Liquid Samples and Its Fundamental Investigations." Analytical chemistry vol. 92,16 (2020): 11072-11079. doi: https://doi.org/10.1021/acs.analchem.0c00524
Song L, You Y, Perdomo NR, Evans-Nguyen T. Inexpensive Ultrasonic Nebulization Coupled with Direct Current Corona Discharge Ionization Mass Spectrometry for Liquid Samples and Its Fundamental Investigations. Anal Chem. 2020 Aug 18;92(16):11072-11079. doi: 10.1021/acs.analchem.0c00524. Epub 2020 Jul 28. PMID: 32662994.
Copy Download .nbib Format: NLM
Transmission mode desorption electrospray ionization (TM-DESI) for simultaneous analysis of potential inorganic and organic components of radiological dispersion devices (RDDs).

Analytical chemistry

Evans-Nguyen KM, Quinto A, Hargraves T, Brown H, Speer J, Glatter D.
PMID: 24236957
Anal Chem. 2013 Dec 17;85(24):11826-34. doi: 10.1021/ac402386m. Epub 2013 Nov 26.

Transmission mode desorption electrospray ionization (TM-DESI) coupled to an ion trap mass spectrometer capable of source collision-induced dissociation (CID) was used to completely analyze radiological dispersion device components. Source CID significantly enhanced the signal for metal ions by reducing...

Cite
Evans-Nguyen KM, Quinto A, Hargraves T, et al. Transmission mode desorption electrospray ionization (TM-DESI) for simultaneous analysis of potential inorganic and organic components of radiological dispersion devices (RDDs). Anal Chem. 2013;85(24):11826-34doi: 10.1021/ac402386m.
Evans-Nguyen, K. M., Quinto, A., Hargraves, T., Brown, H., Speer, J., & Glatter, D. (2013). Transmission mode desorption electrospray ionization (TM-DESI) for simultaneous analysis of potential inorganic and organic components of radiological dispersion devices (RDDs). Analytical chemistry, 85(24), 11826-34. https://doi.org/10.1021/ac402386m
Evans-Nguyen, Kenyon M, et al. "Transmission mode desorption electrospray ionization (TM-DESI) for simultaneous analysis of potential inorganic and organic components of radiological dispersion devices (RDDs)." Analytical chemistry vol. 85,24 (2013): 11826-34. doi: https://doi.org/10.1021/ac402386m
Evans-Nguyen KM, Quinto A, Hargraves T, Brown H, Speer J, Glatter D. Transmission mode desorption electrospray ionization (TM-DESI) for simultaneous analysis of potential inorganic and organic components of radiological dispersion devices (RDDs). Anal Chem. 2013 Dec 17;85(24):11826-34. doi: 10.1021/ac402386m. Epub 2013 Nov 26. PMID: 24236957.
Copy Download .nbib Format: NLM
Differential mobility spectrometry-mass spectrometry for atomic analysis.

Analytical chemistry

Sinatra FL, Wu T, Manolakos S, Wang J, Evans-Nguyen TG.
PMID: 25521495
Anal Chem. 2015 Feb 03;87(3):1685-93. doi: 10.1021/ac503466s. Epub 2015 Jan 09.

Analysis and separation of atomic ions within a portable setting are studied in forensic applications of radiological debris analysis. Ion mobility spectrometry (IMS) may be used to show separation of atomic ions, while the related method of differential mobility...

Cite
Sinatra FL, Wu T, Manolakos S, et al. Differential mobility spectrometry-mass spectrometry for atomic analysis. Anal Chem. 2015;87(3):1685-93doi: 10.1021/ac503466s.
Sinatra, F. L., Wu, T., Manolakos, S., Wang, J., & Evans-Nguyen, T. G. (2015). Differential mobility spectrometry-mass spectrometry for atomic analysis. Analytical chemistry, 87(3), 1685-93. https://doi.org/10.1021/ac503466s
Sinatra, Francy L, et al. "Differential mobility spectrometry-mass spectrometry for atomic analysis." Analytical chemistry vol. 87,3 (2015): 1685-93. doi: https://doi.org/10.1021/ac503466s
Sinatra FL, Wu T, Manolakos S, Wang J, Evans-Nguyen TG. Differential mobility spectrometry-mass spectrometry for atomic analysis. Anal Chem. 2015 Feb 03;87(3):1685-93. doi: 10.1021/ac503466s. Epub 2015 Jan 09. PMID: 25521495.
Copy Download .nbib Format: NLM
Differential Mobility Spectrometry for Inorganic Filtration in Nuclear Forensics.

Analytical chemistry

Manolakos S, Sinatra F, Albers L, Hufford K, Alberti J, Nazarov E, Evans-Nguyen T.
PMID: 27715016
Anal Chem. 2016 Dec 06;88(23):11399-11405. doi: 10.1021/acs.analchem.6b01441. Epub 2016 Nov 07.

Differential mobility spectrometry (DMS) is applied to the analysis of inorganic mixtures relevant to nuclear forensics. Three primary components of potential radiological dispersal devices (RDDs), cobalt, cesium, and strontium, were studied by DMS to demonstrate rapid sample cleanup when...

Cite
Manolakos S, Sinatra F, Albers L, et al. Differential Mobility Spectrometry for Inorganic Filtration in Nuclear Forensics. Anal Chem. 2016;88(23):11399-11405doi: 10.1021/acs.analchem.6b01441.
Manolakos, S., Sinatra, F., Albers, L., Hufford, K., Alberti, J., Nazarov, E., & Evans-Nguyen, T. (2016). Differential Mobility Spectrometry for Inorganic Filtration in Nuclear Forensics. Analytical chemistry, 88(23), 11399-11405. https://doi.org/10.1021/acs.analchem.6b01441
Manolakos, Spiros, et al. "Differential Mobility Spectrometry for Inorganic Filtration in Nuclear Forensics." Analytical chemistry vol. 88,23 (2016): 11399-11405. doi: https://doi.org/10.1021/acs.analchem.6b01441
Manolakos S, Sinatra F, Albers L, Hufford K, Alberti J, Nazarov E, Evans-Nguyen T. Differential Mobility Spectrometry for Inorganic Filtration in Nuclear Forensics. Anal Chem. 2016 Dec 06;88(23):11399-11405. doi: 10.1021/acs.analchem.6b01441. Epub 2016 Nov 07. PMID: 27715016.
Copy Download .nbib Format: NLM
Ion-Trap-Performance Enhancement Utilizing Pulsed Buffer-Gas Introduction.

Analytical chemistry

Vazquez T, Taylor C, Evans-Nguyen T.
PMID: 30089204
Anal Chem. 2018 Sep 04;90(17):10600-10606. doi: 10.1021/acs.analchem.8b02881. Epub 2018 Aug 21.

A novel means of improving the resolution and total ion signal inside a digitally driven 3D quadrupole ion trap has been studied. Conventional ion-trapping methods occur by injecting helium gas continuously into the trap to kinetically cool ions and...

Cite
Vazquez T, Taylor C, Evans-Nguyen T. Ion-Trap-Performance Enhancement Utilizing Pulsed Buffer-Gas Introduction. Anal Chem. 2018;90(17):10600-10606doi: 10.1021/acs.analchem.8b02881.
Vazquez, T., Taylor, C., & Evans-Nguyen, T. (2018). Ion-Trap-Performance Enhancement Utilizing Pulsed Buffer-Gas Introduction. Analytical chemistry, 90(17), 10600-10606. https://doi.org/10.1021/acs.analchem.8b02881
Vazquez, Timothy, et al. "Ion-Trap-Performance Enhancement Utilizing Pulsed Buffer-Gas Introduction." Analytical chemistry vol. 90,17 (2018): 10600-10606. doi: https://doi.org/10.1021/acs.analchem.8b02881
Vazquez T, Taylor C, Evans-Nguyen T. Ion-Trap-Performance Enhancement Utilizing Pulsed Buffer-Gas Introduction. Anal Chem. 2018 Sep 04;90(17):10600-10606. doi: 10.1021/acs.analchem.8b02881. Epub 2018 Aug 21. PMID: 30089204.
Copy Download .nbib Format: NLM
Enabling Field Asymmetric Ion Mobility Spectrometry Separation of Fentanyl-Related Compounds Using Controlled Humidity.

Analytical chemistry

Grimes N, Vuppala S, Ayodeji I, Donovan J, Evans-Nguyen T.
PMID: 31976655
Anal Chem. 2020 Feb 18;92(4):2917-2921. doi: 10.1021/acs.analchem.9b02997. Epub 2020 Feb 06.

Due to the widespread abuse of opioids in recent years, the development of quick and reliable methods for analyzing compounds such as fentanyl and its derivatives is increasingly important. Ahead of online mass spectrometric analysis, field asymmetric ion mobility...

Cite
Grimes N, Vuppala S, Ayodeji I, et al. Enabling Field Asymmetric Ion Mobility Spectrometry Separation of Fentanyl-Related Compounds Using Controlled Humidity. Anal Chem. 2020;92(4):2917-2921doi: 10.1021/acs.analchem.9b02997.
Grimes, N., Vuppala, S., Ayodeji, I., Donovan, J., & Evans-Nguyen, T. (2020). Enabling Field Asymmetric Ion Mobility Spectrometry Separation of Fentanyl-Related Compounds Using Controlled Humidity. Analytical chemistry, 92(4), 2917-2921. https://doi.org/10.1021/acs.analchem.9b02997
Grimes, Nathan, et al. "Enabling Field Asymmetric Ion Mobility Spectrometry Separation of Fentanyl-Related Compounds Using Controlled Humidity." Analytical chemistry vol. 92,4 (2020): 2917-2921. doi: https://doi.org/10.1021/acs.analchem.9b02997
Grimes N, Vuppala S, Ayodeji I, Donovan J, Evans-Nguyen T. Enabling Field Asymmetric Ion Mobility Spectrometry Separation of Fentanyl-Related Compounds Using Controlled Humidity. Anal Chem. 2020 Feb 18;92(4):2917-2921. doi: 10.1021/acs.analchem.9b02997. Epub 2020 Feb 06. PMID: 31976655.
Copy Download .nbib Format: NLM
IN SITU MASS SPECTROMETERS FOR APPLICATIONS IN SPACE.

Mass spectrometry reviews

Vazquez T, Vuppala S, Ayodeji I, Song L, Grimes N, Evans-Nguyen T.
PMID: 32949473
Mass Spectrom Rev. 2021 Sep;40(5):670-691. doi: 10.1002/mas.21648. Epub 2020 Sep 19.

Mass spectrometry (MS) has played a remarkable role in exploring the chemical make-up of our solar system. In situ probes were historically developed to analyze inorganic/elemental compositions while leveraging native ions or harsh ionization methods to aid in exploring...

Cite
Vazquez T, Vuppala S, Ayodeji I, et al. IN SITU MASS SPECTROMETERS FOR APPLICATIONS IN SPACE. Mass Spectrom Rev. 2020;40(5):670-691doi: 10.1002/mas.21648.
Vazquez, T., Vuppala, S., Ayodeji, I., Song, L., Grimes, N., & Evans-Nguyen, T. (2021). IN SITU MASS SPECTROMETERS FOR APPLICATIONS IN SPACE. Mass spectrometry reviews, 40(5), 670-691. https://doi.org/10.1002/mas.21648
Vazquez, Timothy, et al. "IN SITU MASS SPECTROMETERS FOR APPLICATIONS IN SPACE." Mass spectrometry reviews vol. 40,5 (2021): 670-691. doi: https://doi.org/10.1002/mas.21648
Vazquez T, Vuppala S, Ayodeji I, Song L, Grimes N, Evans-Nguyen T. IN SITU MASS SPECTROMETERS FOR APPLICATIONS IN SPACE. Mass Spectrom Rev. 2021 Sep;40(5):670-691. doi: 10.1002/mas.21648. Epub 2020 Sep 19. PMID: 32949473.
Copy Download .nbib Format: NLM
FIELDABLE MASS SPECTROMETRY FOR FORENSIC SCIENCE, HOMELAND SECURITY, AND DEFENSE APPLICATIONS.

Mass spectrometry reviews

Evans-Nguyen K, Stelmack AR, Clowser PC, Holtz JM, Mulligan CC.
PMID: 32722885
Mass Spectrom Rev. 2021 Sep;40(5):628-646. doi: 10.1002/mas.21646. Epub 2020 Jul 28.

Mass spectrometry is commonly used in forensic chemistry laboratories for sensitive, definitive analysis. There have been significant efforts to bring mass spectrometry analysis on-site through the development of ruggedized, fieldable instruments. Testing samples in the field is of particular...

Cite
Evans-Nguyen K, Stelmack AR, Clowser PC, et al. FIELDABLE MASS SPECTROMETRY FOR FORENSIC SCIENCE, HOMELAND SECURITY, AND DEFENSE APPLICATIONS. Mass Spectrom Rev. 2020;40(5):628-646doi: 10.1002/mas.21646.
Evans-Nguyen, K., Stelmack, A. R., Clowser, P. C., Holtz, J. M., & Mulligan, C. C. (2021). FIELDABLE MASS SPECTROMETRY FOR FORENSIC SCIENCE, HOMELAND SECURITY, AND DEFENSE APPLICATIONS. Mass spectrometry reviews, 40(5), 628-646. https://doi.org/10.1002/mas.21646
Evans-Nguyen, Kenyon, et al. "FIELDABLE MASS SPECTROMETRY FOR FORENSIC SCIENCE, HOMELAND SECURITY, AND DEFENSE APPLICATIONS." Mass spectrometry reviews vol. 40,5 (2021): 628-646. doi: https://doi.org/10.1002/mas.21646
Evans-Nguyen K, Stelmack AR, Clowser PC, Holtz JM, Mulligan CC. FIELDABLE MASS SPECTROMETRY FOR FORENSIC SCIENCE, HOMELAND SECURITY, AND DEFENSE APPLICATIONS. Mass Spectrom Rev. 2021 Sep;40(5):628-646. doi: 10.1002/mas.21646. Epub 2020 Jul 28. PMID: 32722885.
Copy Download .nbib Format: NLM
Unsupervised Reconstruction of Analyte-Specific Mass Spectra Based on Time-Domain Morphology with a Modified Cross-Correlation Approach.

Analytical chemistry

You Y, Song L, Young MD, van der Wielen M, Evans-Nguyen T, Riedel J, Shelley JT.
PMID: 33729743
Anal Chem. 2021 Mar 30;93(12):5009-5014. doi: 10.1021/acs.analchem.0c04396. Epub 2021 Mar 17.

Concomitant species that appear at the same or very similar times in a mass-spectral analysis can clutter a spectrum because of the coexistence of many analyte-related ions (

Cite
You Y, Song L, Young MD, et al. Unsupervised Reconstruction of Analyte-Specific Mass Spectra Based on Time-Domain Morphology with a Modified Cross-Correlation Approach. Anal Chem. 2021;93(12):5009-5014doi: 10.1021/acs.analchem.0c04396.
You, Y., Song, L., Young, M. D., van der Wielen, M., Evans-Nguyen, T., Riedel, J., & Shelley, J. T. (2021). Unsupervised Reconstruction of Analyte-Specific Mass Spectra Based on Time-Domain Morphology with a Modified Cross-Correlation Approach. Analytical chemistry, 93(12), 5009-5014. https://doi.org/10.1021/acs.analchem.0c04396
You, Yi, et al. "Unsupervised Reconstruction of Analyte-Specific Mass Spectra Based on Time-Domain Morphology with a Modified Cross-Correlation Approach." Analytical chemistry vol. 93,12 (2021): 5009-5014. doi: https://doi.org/10.1021/acs.analchem.0c04396
You Y, Song L, Young MD, van der Wielen M, Evans-Nguyen T, Riedel J, Shelley JT. Unsupervised Reconstruction of Analyte-Specific Mass Spectra Based on Time-Domain Morphology with a Modified Cross-Correlation Approach. Anal Chem. 2021 Mar 30;93(12):5009-5014. doi: 10.1021/acs.analchem.0c04396. Epub 2021 Mar 17. PMID: 33729743.
Copy Download .nbib Format: NLM
Enabling Isotope Ratio Measurements on an Ion Trap Mass Spectrometer.

Journal of the American Society for Mass Spectrometry

Vazquez T, Taylor C, Knowlton M, Williams S, Evans-Nguyen T.
PMID: 32663003
J Am Soc Mass Spectrom. 2020 Jul 14; doi: 10.1021/jasms.0c00143. Epub 2020 Jul 14.

For portable, remotely operated systems in space and defense, relaxed vacuum requirements are a strong advantage of ion trap mass analyzers. However, ion traps are believed to have insufficient capability for isotope ratio measurement because they fundamentally restrict sampling...

Cite
Vazquez T, Taylor C, Knowlton M, et al. Enabling Isotope Ratio Measurements on an Ion Trap Mass Spectrometer. J Am Soc Mass Spectrom. 2020;doi: 10.1021/jasms.0c00143.
Vazquez, T., Taylor, C., Knowlton, M., Williams, S., & Evans-Nguyen, T. (2020). Enabling Isotope Ratio Measurements on an Ion Trap Mass Spectrometer. Journal of the American Society for Mass Spectrometry, . https://doi.org/10.1021/jasms.0c00143
Vazquez, Timothy, et al. "Enabling Isotope Ratio Measurements on an Ion Trap Mass Spectrometer." Journal of the American Society for Mass Spectrometry vol. (2020). doi: https://doi.org/10.1021/jasms.0c00143
Vazquez T, Taylor C, Knowlton M, Williams S, Evans-Nguyen T. Enabling Isotope Ratio Measurements on an Ion Trap Mass Spectrometer. J Am Soc Mass Spectrom. 2020 Jul 14; doi: 10.1021/jasms.0c00143. Epub 2020 Jul 14. PMID: 32663003.
Copy Download .nbib Format: NLM
Showing 1 to 12 of 13 entries