Zobrazeno 1 - 10
of 171
pro vyhledávání: '"Murray J. McEwan"'
Publikováno v:
Environments, Vol 7, Iss 10, p 90 (2020)
Odors from wastewater treatment plants (WWTPs) have frequently been attributed primarily to hydrogen sulfide (H2S). Low-to-medium cost hydrogen sulfide sensors have been utilized as odor indicators. However, other odorous species are usually present
Externí odkaz:
https://doaj.org/article/bcfede99dd254418a32b222a953b45b0
Publikováno v:
Environments, Vol 4, Iss 1, p 16 (2017)
Direct analysis techniques have greatly simplified analytical methods used to monitor analytes at trace levels in air samples. One of these methods, Selected Ion Flow Tube-Mass Spectrometry (SIFT-MS), has proven to be particularly effective because o
Externí odkaz:
https://doaj.org/article/a681ea37f9584b7381ad0aa3d68dc009
Publikováno v:
Mass Spectrometry Reviews.
Publikováno v:
Flavour and Fragrance Journal. 34:393-410
Publikováno v:
Analytical chemistry. 92(19)
Ion-molecule reactions (IMR) are at the very core of trace gas analyses in modern chemical ionization (CI) mass spectrometer instruments, which are increasingly being used in diverse areas of research and industry. The focus of this Perspective is on
Autor:
Jing Ma, Caleb Allpress, Sage Robinson, Deborah L. Crittenden, Melvin Wu, Murray J. McEwan, Paul F. Wilson
Publikováno v:
Rapid communications in mass spectrometry : RCMREFERENCES. 33(23)
Rationale Monitoring of isomeric analytes using mass spectrometry usually requires a time-consuming chromatographic separation of the analytes before analysis. Selected ion flow tube mass spectrometry (SIFT-MS) can provide rapid direct analysis of et
Publikováno v:
Environments
Volume 7
Issue 10
Environments, Vol 7, Iss 90, p 90 (2020)
Volume 7
Issue 10
Environments, Vol 7, Iss 90, p 90 (2020)
Odors from wastewater treatment plants (WWTPs) have frequently been attributed primarily to hydrogen sulfide (H2S). Low-to-medium cost hydrogen sulfide sensors have been utilized as odor indicators. However, other odorous species are usually present
Publikováno v:
Environments; Volume 5; Issue 4; Pages: 43
Instrumental analysis of odor is challenging due to the chemical diversity of many important odorants, the high sensitivity required to achieve human odor thresholds, and the dynamic nature of the odor itself. Conventional sensor-based and chromatogr
Autor:
Daniel B. Milligan, John D.C. Gray, Vaughan S. Langford, Robert G. A. R. Maclagan, Murray J. McEwan
Publikováno v:
International Journal of Mass Spectrometry. 377:490-495
The ion-molecule chemistry of the three common reagent ions used in selected ion flow tube mass spectrometry (SIFT-MS), H 3 O + , NO + and O 2 + , has been extended to include reactions with seven nitrosamines. Theoretical calculations enabled the di
Publikováno v:
Rapid Communications in Mass Spectrometry. 28:10-18
RATIONALE: The gold standard for monitoring volatile organic compounds (VOCs) is gas chromatography/mass spectrometry (GC/MS). However, in many situations, when VOC concentrations are at the ppmv level, there are complicating factors for GC/MS. Selec