Results 31 to 40 of about 43,291 (164)

Stable isotope data of daily precipitation during the period of 2013–2017 from K-puszta (regional background monitoring station), Hungary

Data in Brief, 2021
Precipitation was collected on daily basis at K-puszta regional background monitoring station located near Kecskemét, in the western part of the Great Hungarian Plain, between 1 April 2013 and 31 December 2017 for stable hydrogen and oxygen analyses. The
György Czuppon, Emese Bottyán, Erzsébet Kristóf, Tamás Weidinger, László Haszpra, Krisztina Kármán   +5 more
doaj   +1 more source

Mechanistic investigation of the formation of H2 from HCOOH with a dinuclear Ru model complex for formate hydrogen lyase

Science and Technology of Advanced Materials, 2017
We report the mechanistic investigation of catalytic H2 evolution from formic acid in water using a formate-bridged dinuclear Ru complex as a formate hydrogen lyase model.
Taisuke Tokunaga, Takeshi Yatabe, Takahiro Matsumoto, Tatsuya Ando, Ki-Seok Yoon, Seiji Ogo   +5 more
doaj   +1 more source

The measurement of ambient air moisture stable isotope composition for the accurate estimation of evaporative losses

MethodsX, 2023
Accurate estimation of evaporative losses from a water body, using the Craig-Gordon model and the stable hydrogen and oxygen isotope composition of water, requires knowledge of the stable isotope composition of ambient air moisture.
Cihat Adsiz, Grzegorz Skrzypek, James McCallum   +2 more
doaj   +1 more source

Using oxygen and hydrogen stable isotopes to track the migratory movement of Sharp-shinned Hawks (Accipiter striatus) along Western Flyways of North America.

PLoS ONE, 2020
The large-scale patterns of movement for the Sharp-shinned Hawk (Accipiter striatus), a small forest hawk found throughout western North America, are largely unknown.
Elizabeth A Wommack, Lisa C Marrack, Stefania Mambelli, Joshua M Hull, Todd E Dawson   +4 more
doaj   +1 more source

Geochemical characteristics and genesis of natural gas in the Upper Triassic Xujiahe Formation in the Sichuan Basin

Open Geosciences, 2022
In recent years, the geochemical characteristics, genesis and sources of natural gas in the Upper Triassic Xujiahe Formation in the Sichuan Basin have received extensive attention, but their genesis and sources are still controversial.
Tan Kaijun, Chen Juan, Yao Jun, Wu Qingpeng, Shi Jianglong   +4 more
doaj   +1 more source

Characteristics of Stable Hydrogen and Oxygen Isotopes of Soil Moisture under Different Land Use in Dry Hot Valley of Yuanmou

Open Chemistry, 2019
Soil moisture, stable hydrogen, and oxygen isotopes were sampled and determined in a demonstration area of soil and moisture conservation at the Laocheng Town of Yuanmou County in Chuxiong Prefecture, Yunnan of three land use types: Leucaena Benth ...
Han Jiao-Jiao, Duan Xu, Zhao Yang-Yi, Li Meng   +3 more
doaj   +1 more source

Combined measurement of hydrogen sulfide content and sulfur isotope in natural gas

Shiyou shiyan dizhi
The natural gas containing hydrogen sulfide in China has great exploration potential, and the origin, source and formation mechanism of hydrogen sulfide are of concern to petroleum workers.
Huamin YANG, Ping WANG, Cheng TAO, Jie WANG, Liangbang MA   +4 more
doaj   +1 more source

Theoretical Study of H/D Isotope Effects on Nuclear Magnetic Shieldings Using an ab initio Multi-Component Molecular Orbital Method

Molecules, 2013
We have theoretically analyzed the nuclear quantum effect on the nuclear magnetic shieldings for the intramolecular hydrogen-bonded systems of σ-hydroxy acyl aromatic species using the gauge-including atomic orbital technique combined with our multi ...
Masanori Tachikawa, Takayoshi Ishimoto, Taro Udagawa   +2 more
doaj   +1 more source

Determination of Stable Hydrogen Isotopic Composition and Isotope Enrichment Factor at Low Hydrogen Concentration

Analytical Chemistry, 2023
Determination of stable hydrogen isotopic compositions (δ2H) is currently challenged to achieve a high detection limit for reaching the linear range where δ2H values are independent of concentration. Therefore, it is difficult to assess precise δ2H values for calculating the hydrogen isotope enrichment factor (εH) and for field application where the ...
Xiao Liu, Langping Wu, Steffen Kümmel, Matthias Gehre, Hans Hermann Richnow   +4 more
openaire   +2 more sources

C−H Functionalisation for Hydrogen Isotope Exchange [PDF]

Angewandte Chemie International Edition, 2018
AbstractThe various applications of hydrogen isotopes (deuterium, D, and tritium, T) in the physical and life sciences demand a range of methods for their installation in an array of molecular architectures. In this Review, we describe recent advances in synthetic C−H functionalisation for hydrogen isotope exchange.
Jens Atzrodt, Volker Derdau, William J. Kerr, Marc Reid   +3 more
openaire   +3 more sources