Zobrazeno 1 - 6
of 6
pro vyhledávání: '"John D.C. Gray"'
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:
Current Analytical Chemistry. 9:558-564
Publikováno v:
Rapid Communications in Mass Spectrometry. 27:700-706
RATIONALE People are using increasing amounts of siloxanes that ultimately end up in landfills and then in landfill gas and biogas digesters. Their presence poses difficulties for industries seeking to utilize the energy content of landfill and bioga
Autor:
Vaughan S. Langford, Donald R. Hastie, Daniel B. Milligan, Robert G. A. R. Maclagan, John D.C. Gray, Murray J. McEwan
Publikováno v:
Rapid Communications in Mass Spectrometry. 24:343-348
The on-line detection of gaseous peroxyacetyl nitrate (PAN) using selected ion flow tube mass spectrometry (SIFT-MS) has been investigated using a synthetic sample of PAN in air at a humidity of approximately 30%. Using the H(3)O(+) reagent ion, sign
Autor:
John D.C. Gray, Bryan G. Coombe, Patrick G. Iland, W.U. Cynkar, I. Leigh Francis, Patrick J. Williams
Publikováno v:
Journal of Agricultural and Food Chemistry. 43:121-128
An analytical assay for glycosylated secondary metabolites of grapes, juices and wines, through quantification of glycosyl glucose (G-G), has been optimized and validated. The glycosides are isolated on C 18 reversed-phase silica gel and hydrolyzed w
Publikováno v:
Journal of agricultural and food chemistry. 60(27)
Honeys have a range of physicochemical and organoleptic properties, depending on the nectar source. Selected Ion Flow Tube-Mass Spectrometry (SIFT-MS) is an emerging technology that quantifies volatile organic compounds (VOCs) to low concentrations (