Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Roald N Leif"'
Publikováno v:
PLoS ONE, Vol 17, Iss 11, p e0275931 (2022)
Electron Impact Gas Chromatography-Mass Spectrometry (EI-GC-MS) and High Resolution Liquid Chromatography-Mass Spectrometry (HR-LC-MS) have been used in the analysis of products arising from the trichloroethoxycarbonylation of fentanyl and acetylfent
Externí odkaz:
https://doaj.org/article/1a9318e6f647452ea85ab94f48961df8
Publikováno v:
PLoS ONE, Vol 9, Iss 9, p e108250 (2014)
The alternate and optimized syntheses of the parent opioid fentanyl and its analogs are described. The routes presented exhibit high-yielding transformations leading to these powerful analgesics after optimization studies were carried out for each sy
Externí odkaz:
https://doaj.org/article/69de0c9f96d843218c7e0cc8cb5ce1bb
Autor:
Robert D. Sanner, Mark Dreyer, Todd H. Corzett, Roald N. Leif, Katelyn E. Mason, Carlos A. Valdez
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
Scientific Reports
Scientific Reports
The one-step breakdown and derivatization of a panel of nine fentanyls to yield uniquely tagged products that can be detected by Electron Ionization Gas Chromatography-Mass Spectrometry (EI-GC-MS) is presented. The method involves the treatment of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac1d78371ceded0d5b457bbff5c70a40
https://doaj.org/article/19febadc72b24bd0b62e76ca5ee23c3c
https://doaj.org/article/19febadc72b24bd0b62e76ca5ee23c3c
Publikováno v:
Scientific Reports. 12
The use of benzyl trichloroacetimidates for the benzylation of phosphonic acid nerve agent markers under neutral, basic, and slightly acidic conditions is presented. The benzyl-derived phosphonic acids were detected and analyzed by Electron Ionizatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b0790f0dc58a343c62888cc71798716
https://doi.org/10.1038/s41598-022-25710-4
https://doi.org/10.1038/s41598-022-25710-4
Publikováno v:
Forensic Chemistry. 34:100504
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21eea781190b9089d66c8211206f3f36
https://doi.org/10.1016/j.forc.2023.100504
https://doi.org/10.1016/j.forc.2023.100504
Autor:
Carolyn Koester, Todd H. Corzett, Carolyn L. Fisher, Roald N. Leif, Carlos A. Valdez, Saphon Hok, Armando Alcaraz
Publikováno v:
Analytical and Bioanalytical Chemistry. 413:3145-3151
A derivatization protocol based on the acylation of pinacolyl alcohol (PA), an important marker for the nerve agent soman, is presented. The procedure provides a convenient means of detecting, by gas chromatography-mass spectrometry (GC-MS), PA when
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf79a7c3f017322afa2685cf884d8ba4
https://doi.org/10.1007/s00216-021-03296-6
https://doi.org/10.1007/s00216-021-03296-6
Publikováno v:
Scientific Reports
Scientific Reports, Vol 12, Iss 1, Pp 1-9 (2022)
Scientific Reports, Vol 12, Iss 1, Pp 1-9 (2022)
The efficient methylation of a panel of five industrial and environmentally-relevant chlorophenols (CPs) employing trimethyloxonium tetrafluoroborate (TMO) for their qualitative detection and identification by electron impact gas chromatography–mas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2d5ba65b291f581d97391de20601d8c
http://europepmc.org/articles/PMC8792036
http://europepmc.org/articles/PMC8792036
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-10 (2019)
Scientific Reports
Scientific Reports
The rapid and efficient difluoromethylation of a panel of eleven bisphenols (BPs) for their enhanced detection and identification by Electron-Ionization Gas Chromatography-Mass Spectrometry (EI-GC-MS) is presented. The derivatization employs the inex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8a9fc00e59016219ba440886293c4ac
http://link.springer.com/article/10.1038/s41598-019-53735-9
http://link.springer.com/article/10.1038/s41598-019-53735-9
Autor:
Roald N. Leif, Carlos A. Valdez
Publikováno v:
Molecules
Molecules, Vol 26, Iss 4631, p 4631 (2021)
Molecules, Vol 26, Iss 4631, p 4631 (2021)
The field of gas chromatography-mass spectrometry (GC-MS) in the analysis of chemical warfare agents (CWAs), specifically those involving the organophosphorus-based nerve agents (OPNAs), is a continually evolving and dynamic area of research. The eve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae838705f3ffee94317a8b36c4c00455
https://pubmed.ncbi.nlm.nih.gov/34361784
https://pubmed.ncbi.nlm.nih.gov/34361784
