Solvent and Flow Rate Effects on the Observed Compositional Profiles and the Relative Intensities of Radical and Protonated Species in Atmospheric Pressure Photoionization Mass Spectrometry

Autor: Mary J. Thomas, Ho Yi Holly Chan, Diana Catalina Palacio Lozano, Mark P. Barrow

Publikováno v: Analytical Chemistry. 94:4954-4960

Sample preparation and instrument parameters have regularly been demonstrated to impact upon the observed results in atmospheric pressure photoionization, mass spectrometry (MS), and analytical techniques in general but may be overlooked when such me

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78ecb66a97e68a14a9e102da953abf43
https://doi.org/10.1021/acs.analchem.1c03463

Revealing the reactivity of individual chemical entities in complex mixtures : the chemistry behind bio-oil upgrading

Autor: Diana Catalina Palacio Lozano, Hugh E. Jones, Remy Gavard, Mary J. Thomas, Claudia X. Ramírez, Christopher A. Wootton, José Aristóbulo Sarmiento Chaparro, Peter B. O’Connor, Simon E. F. Spencer, David Rossell, Enrique Mejia-Ospino, Matthias Witt, Mark P. Barrow

Bio-oils are precursors for biofuels but are highly corrosive necessitating further upgrading. Furthermore, bio-oil samples are highly complex and represent a broad range of chemistries. They are complex mixtures not simply because of the large numbe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b530e383cb775322c353e7773e64261
http://wrap.warwick.ac.uk/165765/1/WRAP-Revealing-reactivity-individual-chemical-entities-complex-mixtures-bio-oil-upgrading-2022.pdf

Characterization of oil sands naphthenic acids by negative-ion electrospray ionization mass spectrometry: Influence of acidic versus basic transfer solvent

Autor: Kerry M. Peru, Mary J. Thomas, Diana Catalina Palacio Lozano, Mark P. Barrow, Dena W. McMartin, John V. Headley

Publikováno v: Chemosphere. 222:1017-1024

Considerable effort and progress has been made over the past decade with respect to development of analytical tools for the determination of naphthenic acids and related components in environmental samples. However, experimental variables that influe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4382ce04576a74bc7dc7c824e7d4c871
https://doi.org/10.1016/j.chemosphere.2019.01.162

KairosMS: A New Solution for the Processing of Hyphenated Ultrahigh Resolution Mass Spectrometry Data

Autor: Mark P. Barrow, Hugh E. Jones, Remy Gavard, Diana Catalina Palacio Lozano, Mary J. Thomas, David Rossell, Simon E. F. Spencer

Publikováno v: Analytical chemistry. 92(5)

The use of hyphenated Fourier transform mass spectrometry (FTMS) methods affords additional information about complex chemical mixtures. Co-eluted components can be resolved thanks to the ultra-high resolving power, which also allows extracted ion ch

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ac70197656141aaf42e9ee08924f142
https://pubmed.ncbi.nlm.nih.gov/31990191

An international laboratory comparison of dissolved organic matter composition by high resolution mass spectrometry: Are we getting the same answer?

Autor: Helena Osterholz, Amna Ijaz, Juliana D'Andrilli, Christina K. Remucal, Nicholas D. Schmitt, Patrick G. Hatcher, Simeon Schum, Rosalie K. Chu, Richard B. Cole, Mary J. Thomas, Rachel L. Sleighter, Nikola Tolić, Nikola Radoman, Lynn Mazzoleni, Hongmei Chen, Aron Stubbins, Ryan H. S. Hutchins, Phoebe Zito, Chen He, Shuzhen Zhang, Jitao Lv, Thorsten Dittmar, Mark P. Barrow, Jeffrey A. Hawkes, Gabriel Singer, Remy Gavard, Stephanie M. Berg, Jeffrey N. Agar, Hugh E. Jones, Núria Catalán, Carsten Simon, David C. Podgorski, Gerd Gleixner, William Kew, Beatriz E. Noriega-Ortega, Diana Catalina Palacio Lozano, Nancy J. Hess, Quan Shi, Maryam Khaksari

Publikováno v: Limnology and Oceanography: Methods
Limnology and Oceanography: Methods, 2020, 18 (6), pp.235--258. ⟨10.1002/lom3.10364⟩
Limnology and Oceanography: Methods, 2020, vol. 18, núm. 6, p. 235-258
Articles publicats (ICRA)
DUGiDocs – Universitat de Girona
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High‐resolution mass spectrometry (HRMS) has become a vital tool for dissolved organic matter (DOM) characterization. The upward trend in HRMS analysis of DOM presents challenges in data comparison and interpretation among laboratories operating in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efc6f3adb6b01ed7314581318df2c503