Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Kaveh Jorabchi"'
Publikováno v:
Analytical chemistry. 94(34)
Simultaneous elemental detection of F and Cl offers quantitation of fluorinated and chlorinated compounds and their transformation products without compound-specific standards. Despite wide-ranging applications, this capability has been hindered by f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::186f140a21a01aee7bfba9c1d0a3bbbf
https://pubmed.ncbi.nlm.nih.gov/35977413
https://pubmed.ncbi.nlm.nih.gov/35977413
Publikováno v:
Journal of Analytical Atomic Spectrometry. 37:870-882
Post-plasma chemical ionization of ICP-produced HF by barium-based reagent ions vastly improves F detection sensitivity compared to that of ICP-MS where ions are formed inside the plasma.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fccecb6ff0f694cb6c310682f6d32358
https://doi.org/10.1039/d1ja00449b
https://doi.org/10.1039/d1ja00449b
Autor:
Michael J. Dolan, Kaveh Jorabchi
Publikováno v:
Journal of Forensic Sciences. 66:1669-1678
Fluorinated polymer coatings are used to impart durable oil-and-water-repellent properties on fabrics, potentially offering a persistent fiber characteristic for forensic fiber comparisons. To evaluate the persistence of these coatings, we investigat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8859f11a453cfff9a55cd91b00e848e4
https://doi.org/10.1111/1556-4029.14744
https://doi.org/10.1111/1556-4029.14744
Autor:
Kaveh Jorabchi, Michael J. Dolan, Kunyu Zheng, Joseph E. Lesniewski, Tyler T. Metallo, Wanqing Li
Publikováno v:
Analytical Chemistry. 92:10129-10137
The growing use of fluorochemicals has elevated the need for nontargeted detection of unknown fluorinated compounds and transformation products. Elemental mass spectrometry (MS) coupled to chromatography offers a facile approach for such analyses by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ef0ff18985bdd71889b48b288a36538
https://doi.org/10.1021/acs.analchem.0c02141
https://doi.org/10.1021/acs.analchem.0c02141
Publikováno v:
Journal of the American Society for Mass Spectrometry. 31:488-497
We have previously shown that pulsed nano-ESI offers direct ion introduction into an AP-IM cell in the absence of conventional gates and desolvation. Here, we further characterize this ion injection method and utilize it to gain insights into nano-ES
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::baddb878be32a2e0f7cd8de55ad7e07c
https://doi.org/10.1021/jasms.9b00121
https://doi.org/10.1021/jasms.9b00121
Autor:
Kaveh Jorabchi, William P. McMahon
Publikováno v:
Analyst
Nano-ESI is a commonly used ionization technique with continually expanding analytical advantages. Here, we report a facile way for high-frequency (500–3800 Hz) pulsing of nano-ESI, providing a high flux of mobility-selected ions. The pulsing is ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6949ae44092c967d6ea8546877d08bfa
https://doi.org/10.1039/d0an01198c
https://doi.org/10.1039/d0an01198c
Publikováno v:
Analytical Chemistry. 91:3773-3777
Fluorine elemental analysis using inductively coupled plasma mass spectrometry (ICPMS) is challenging because of low F ionization efficiency in the plasma and severe isobaric interferences. Notably, there is an increasing demand for ppb level fluorin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2cfa92554d428ce5bbb97f06825a9831
https://doi.org/10.1021/acs.analchem.8b05851
https://doi.org/10.1021/acs.analchem.8b05851
Publikováno v:
Journal of Forensic Sciences.
Fluorinated coatings, often used for oil and water repellency and stain resistance in fabrics, are potentially persistent forensic fiber markers. However, they have received limited attention because of challenges in their detection caused by the sma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aac08d9690bd40e22bcf25d4f6cd9416
https://doi.org/10.1111/1556-4029.14711
https://doi.org/10.1111/1556-4029.14711
Publikováno v:
Analytical Chemistry. 90:2148-2154
Atmospheric-pressure dielectric barrier discharge (AP-DBD) plasma has emerged in recent years as a versatile plasma for molecular ionization and elemental spectroscopy. However, its capabilities as an elemental ion source have been less explored, par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a29d160d4f1055e4ed0b026d8454966
https://doi.org/10.1021/acs.analchem.7b04446
https://doi.org/10.1021/acs.analchem.7b04446
Publikováno v:
Journal of Analytical Atomic Spectrometry. 33:1981-1992
Elemental analysis of chlorine using inductively coupled plasma mass spectrometry (ICP-MS) is challenging because of poor ion formation efficiency of Cl+ in the argon plasma, and prevalence of isobaric interferences. To improve Cl detection, we have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9da50df17f8e1feb0839c14078b6c738
https://doi.org/10.1039/c8ja00244d
https://doi.org/10.1039/c8ja00244d