搜索结果: 1-5 共查到“Compound-Specific”相关记录5条 . 查询时间(0.062 秒)
ten Years of Compound-Specific Radiocarbon Analysis
Radiocarbon Analysis Compound-Specific
2015/7/28
Sixty years ago, scientists demonstrated that cosmic rays react with nitrogen (14N) in the atmosphere, substituting a neutron for a proton to produce 14C (Libby, 1946; Libby et al., 1949). Soon it was...
Compound--Specific Hydrogen Isotopes of Lipid Biomarkers in Lake El’gygytgyn, Ne Russia
Arctic Deuterium Organic Geochemistry Paleoclimate Stable Isotopes
2014/10/22
Recent successful drilling operations at Lake El'gygytgyn, NE Russia have recovered sediment cores back to 3.6Ma, representing the longest time-continuous sediment record of past climate change in the...
Compound-specific stable carbon and hydrogen isotopic compositions of n-alkanes in urban atmospheric aerosols from Tokyo
δD, δ13C, n-alkane urban aerosols Tokyo
2017/8/9
Stable carbon (δ13C) and hydrogen (δD) isotopic compositions of n-alkanes in total suspended particles from Tokyo were measured to decipher their source and transport in the polluted urban atmosphere....
Source apportionment of elevated wintertime PAHs by compound-specific radiocarbon analysis
elevated wintertime PAHs compound-specific radiocarbon
2009/6/2
Natural abundance radiocarbon analysis facilitates distinct source apportionment between contemporary biomass/biofuel (14C "alive") versus fossil fuel (14C "dead") combustion. Here, the first compound...
Compound-specific stable isotopes of organic compounds from lake sediments track recent environmental changes in an alpine ecosystem, Rocky Mountain National Park, Colorado
Compound-specific stable isotopes organic compounds lake sediments environmental changes alpine ecosystem Rocky Mountain National Park Colorado
2014/4/18
Compound-specific nitrogen, carbon, and hydrogen isotope records from sediments of Sky Pond, an alpine lake in Rocky Mountain National Park (Colorado, United States of America), were used to evaluate ...