MOTS EN ANGLAIS EN RAPPORT AVEC «PHYTANE»
phytane
pristane
ratio
crude
phytane
type
diterpenoid
alkane
contrast
which
formed
from
decarboxylation
phytol
extra
carbon
phytanyl
corresponding
substituent
groups
frequently
found
merriam
webster
isoprenoid
hydrocarbon
that
especially
associated
with
fossilized
plant
remains
precambrian
later
eras
relationship
between
although
hydrocarbons
have
been
recognized
usually
most
important
terms
hexadecane
tetramethyl
this
structure
also
available
file
other
names
phytan
tetramethylhexadecane
integrated
geochemical
interpretation
widely
biomarker
parameter
assessment
redox
conditions
during
sediment
accumulation
analytical
standard
sigma
aldrich
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10 LIVRES EN ANGLAIS EN RAPPORT AVEC «PHYTANE»
Découvrez l'usage de
phytane dans la sélection bibliographique suivante. Des livres en rapport avec
phytane et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
The Biomarker Guide: Biomarkers and isotopes in petroleum ...
(suboxic) Phytane Figure 13.7. Diagenctic origin of pristane and phytane from
phytol (derived from side chain of chlorophyll a) (see Figure 3.24). Other sources
of acyclic isoprenoids having 20 carbon atoms or less include chlorophyll h.
Kenneth E. Peters, Clifford C. Walters, J. Michael Moldowan, 2005
2
Applications of Environmental Chemistry: A Practical Guide ...
The difference between single-ion and full-range monitoring is shown in Figures
5.15a and 5.15b. In order to estimate the age of the diesel fuel shown in Figure
5.15, the GC/MS spectra in the pristane/phytane region (15-17 min retention time)
...
3
Echoes of Life : What Fossil Molecules Reveal about Earth ...
This fit with what the Bristol group was learning about the diagenesis of phytol,
wherein a number of reaction pathways were likely to produce both pristane and
phytane in the sediments—but all of the ones that produced pristane required ...
Susan M. Gaines, Geoffrey Eglinton Professor of Organic Geochemistry University of Bristol, Jurgen Rullkotter Professor of Organic Geochemistry University of Oldenburg, 2008
4
Sedimentary Basins and Petroleum Geology of the Middle East
API Isoprenoids “X” Sterane Rearranged Carbon Age Gravity Compounds
Carbon Sterane Isotope Number Content Ratio Huqf 25-30 Phytane Present C29
Strongly Low -36.0 (Infracambrian) Predominant Predominant over Pristane “Q"
40-50 ...
A.E.M. Nairn, A.S. Alsharhan, 1997
5
Marine Biogenic Lipids, Fats & Oils
311 0.09 0.00013 F 11:0— 30:0 alkanes; max 19:0, 23:0; CPI,,.,, = 365 2.56; CPI,,
„, = 2.79 0.00022 F Pristane; phytane present 365 0.00032 F 11:0— 30:0 alkanes
; max 17:0; CPIn.21 = 2.49 365 0.00035 F Pristane; phytane present 365 0.001 ...
Robert George Ackman, 1989
6
Microorganisms to Combat Pollution
Much less change in the n-C18/phytane ratio, if any, occurred in the mixed sand
and gravel under the cobble for the oleophilic fertilizer-treated beach and the
untreated control (data not shown). The absence of a change in the n-C18/
phytane ...
7
The Biomarker Guide: Volume 2, Biomarkers and Isotopes in ...
(suboxic) Phytane Figure 13.7. Diagenctic origin of pristane and phytane from
phytol (derived from side chain of chlorophyll a) (see Figure 3.24). Other sources
of acyclic isoprenoids having 20 carbon atoms or less include chlorophyll h.
K. E. Peters, C. C. Walters, J. M. Moldowan, 2004
8
United States Geological Survey Professional Paper
In contrast, saturate/aromatic, NSO/asphaltene and pristane/ phytane ratios in
coal extracts, trace-element and minor-element contents, and organic carbon 6"C
values of coals resemble shales deposited under relatively oxic conditions.
9
Basin Analysis in Petroleum Exploration: A Case Study from ...
3) all have pristane/phytane ratios (peaks labeled A and B) greater than one. The
overall boiling point distribution among this group varies widely from fairly high
wax oils to condensates consisting of predominantly low molecular weight ...
Paul G. Teleki, Robert E. Mattick, János Kókai, 1994
10
Environmental Forensics
petroleum hydrocarbon is biodegraded, the bacteria preferentially consume the
C,7 and C)8 which results in the pristane and phytane peaks becoming more
pronounced on the chromatogram. Examination of the C,7/pristane and Clg/
phytane ...
2 ACTUALITÉS CONTENANT LE TERME «PHYTANE»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
phytane est employé dans le contexte des actualités suivantes.
Reality Check on the Deepwater Horizon Oil Spill Impacts
Pristane:phytane ratios in the fish also suggested an absence of significant DWH oil contamination. Levels of PAHs, various metals, and DOSS ... «American Thinker, févr 15»
Linc Energy Limited (ASX:LNC) Records 'Oil Shows' In The …
Subsequent laboratory analyses of the Maglia-1 oil samples by 'Geotechnical Services' have confirmed a low pristane to phytane ratio and the ... «ABN Newswire, févr 10»
