Results 281 to 290 of about 196,509 (340)

Dual Isotope Analysis Reveals Phylogenetic Patterns and Novel Insights Into Methoxy Group Synthesis of Structural Biomolecules in Leaf and Woody Plant Tissues. [PDF]

Plant Cell Environ
Wieland A, Schuler P, Saurer M, Vitali V, Greule M, Keppler F, Lehmann MM.   +6 more
europepmc   +1 more source

Carbon kinetic isotope effect of the reaction of CH4 with Cl atoms

, 1995
G. Saueressig, P. Bergamaschi, J. N. Crowley, Hanns Fischer, G. W. Harris   +4 more
openalex   +1 more source

Heavy potassium isotopes in carbonatites reveal oceanic crust subduction as the driver of deep carbon cycling. [PDF]

Sci Adv
Long ZY, Moynier F, Debret B, Qiu KF, Dai W, Sun HX, Deng J, Bertrand H, Burton K, Inglis E, Tappe S.   +10 more
europepmc   +1 more source

Measurement of stable carbon isotope ratios of non-methane hydrocarbons and halocarbons

, 2012
A. Zuiderweg
openalex   +1 more source

Editorial: Hydrothermal and submarine volcanic activity: impacts on ocean chemistry and plankton dynamics. [PDF]

Front Microbiol
Bonnet S, Guieu C, Berman-Frank I, Capone DG, Fitzsimmons JN, Resing JA.   +5 more
europepmc   +1 more source

Analysis of Annual Variation in Stable Isotopic Fingerprints of Native Chinese Mitten Crab (<i>Eriocheir sinensis</i>) from Yangcheng Lake. [PDF]

Animals (Basel)
Xue J, Jiang T, Chen X, Yang J, Zhang W.
europepmc   +1 more source

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Carbon and oxygen isotope microanalysis of carbonate

Rapid Communications in Mass Spectrometry, 2009
Abstract Technical modification of the conventional method for the δ 13 C and δ 18 O analysis of 10–30 µg carbonate samples is described.
Tatiana A, Velivetskaya, Alexander V, Ignatiev, Sergey A, Gorbarenko   +2 more
openaire   +2 more sources

Raman detector of carbon isotopes

Optical Sensing and Detection VI, 2020
We introduce a Raman scattering based detector of carbon isotopes in gaseous mixtures. A solid state 532 nm 5 W CW laser focused into a gaseoussample by a custom-built diffraction-limited objective was used for excitation of Raman signal. Raman signal was collected by an f-matcher with edge filter at excitation wavelength of 532 nm.
Evgeny Popov, Anton Polishchuk, Konstantin Grigorenko, Ian Chubchenko, Vladimir Vitkin   +4 more
openaire   +1 more source

Carbon-isotopic analysis of dissolved acetate

Analytical Chemistry, 1990
Heating of dried, acetate-containing solids together with oxalic acid dihydrate conveniently releases acetic acid for purification by gas chromatography. For determination of the carbon-isotopic composition of total acetate, the acetate-containing zone of the chromatographic effluent can be routed directly to a combustion furnace coupled to a vacuum ...
J T, Gelwicks, J M, Hayes
openaire   +2 more sources