- carbon isotope
- 碳同位素
Atmospheric Sciences (English-Chinese) dictionary. 2014.
carbon isotope
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Isotope-ratio mass spectrometry — Isotope ratio mass spectrometer with gas bench in foreground Acronym IRMS Classification mass spectrometry Other techniques … Wikipedia
Carbon-13 NMR — (13C NMR or sometimes simply referred to as carbon NMR) is the application of nuclear magnetic resonance (NMR) spectroscopy to carbon. It is analogous to proton NMR (1 H NMR) and allows the identification of carbon atoms in an organic molecule… … Wikipedia
Carbon dioxide in the Earth's atmosphere — Carbon dioxide forms approximately 0.04% of the Earth s atmosphere. It is essential to photosynthesis in plants and other photoautotrophs, and is also a prominent greenhouse gas due to its radiative forcing strength.ConcentrationAs of November… … Wikipedia
Isotope ratio mass spectrometry — Infobox chemical analysis name = Isotope ratio mass spectrometry caption =Isotope ratio mass spectrometer with gas bench in foreground acronym = IRMS classification =mass spectrometry analytes = manufacturers = related = Accelerator mass… … Wikipedia
Carbon-13 — Infobox isotope alternate names = symbol =C mass number =13 mass = num neutrons =7 num protons =6 abundance =1.109% halflife = error halflife = background =#F99 text color = decay product = decay symbol = decay mass = decay mode1 = decay energy1 … Wikipedia
carbon 12 — noun : an isotope of carbon of mass number 12 that is the most abundant carbon isotope * * * the isotopic carbon atom that comprises 99 percent of naturally occurring carbon, and that since 1961 has been used as the standard for atomic weight by… … Useful english dictionary
carbon — n. 1 a non metallic element occurring naturally as diamond, graphite, and charcoal, and in all organic compounds. Usage: Symb.: C. 2 a = carbon copy. b = carbon paper. 3 a rod of carbon in an arc lamp. Phrases and idioms: carbon black a fine… … Useful english dictionary
carbon 12 — noun Date: 1946 an isotope of carbon of mass number 12 that is the most abundant carbon isotope and is used as a standard for measurements of atomic weight … New Collegiate Dictionary
carbon-14 — noun a long lived naturally occurring radioactive carbon isotope of mass 14, used in carbon dating and as a tracer in biochemistry … English new terms dictionary
carbon-12 — noun the commonest natural carbon isotope, of mass 12, which is the basis for the accepted scale of atomic mass units … English new terms dictionary
Isotope analysis — is the identification of isotopic signature, the distribution of certain stable isotopes and chemical elements within chemical compounds. This can be applied to a food web to make it possible to draw direct inferences regarding diet, trophic… … Wikipedia
