Definition: varying from of an element
Definition: varying from of an element
Sentences Containing 'isotope'
They found a stratigraphically consistent series of pollen zones, which increased in age consistently with depth from Holocene interglacial epoch to the Wisconsinan glacial epoch, back into oxygen isotope stage 5, 75,000 to 134,000 years BP.
The combined use of isotope ratio mass spectrometry and SNIF-NMR (Site-Specific Natural Isotope Fractionation-Nuclear Magnetic Resonance) allows to discover adulteration otherwise undetectable even allowing for the identification of the geographical origin of the essential oil.
The GC-C-IRMS (Gas Chromatography-Combustion - Isotope Ratio Mass Spectrometer) technique, the most recently used, allows to obtain similar results.
The isotopic composition, the ratio of 12C to 13C, has a significant impact on thermal conductivity, where isotopically pure 12C graphene has higher conductivity than either a 50:50 isotope ratio or the naturally occurring 99:1 ratio."Lay summary": It can be shown by using the Wiedemann–Franz law, that the thermal conduction is phonon-dominated.
鑀 is used in Taiwan for both einsteinium (mainland China: 锿) and ionium, the radioactive isotope of thorium, element number 90.
In 1984 he toured England with his own trio, and the following year joined forces with ex-Isotope guitarist Gary Boyle.
For some time it looked as if it would be impossible to cool below the lambda point of 4He (2.17 K), but the Low-Temperature group of the Eindhoven University of Technology managed to cool to a temperature of 1.73 K by replacing the usual 4He as refrigerant by its rare isotope 3He.
In proteomics, MALDI is used for the rapid identification of proteins isolated by using gel electrophoresis: SDS-PAGE, size exclusion chromatography, affinity chromatography, strong/weak ion exchange, isotope coded protein labelling (ICPL),and two-dimensional gel electrophoresis.
The mass number is unique for each isotope of an element and is written either after the element name or as a superscript to the left of an element's symbol.
The monoisotopic mass is the sum of the masses of the atoms in a molecule using the unbound, ground-state, rest mass of the principal (most abundant) isotope for each element instead of the isotopic average mass.
For typical organic compounds, where the monoisotopic mass is most commonly used, this also results in the lightest isotope being selected.
For some heavier atoms such as iron and argon the principal isotope is not the lightest isotope.
This refers to the mass of the molecule with the most highly represented isotope distribution, based on the natural abundance of the isotopes.
The nominal mass of an ion or molecule is calculated using the integer mass (ignoring the mass defect) of the most abundant isotope of each element.
Isotope measurements indicate transpiration is the larger component of evapotranspiration.
Labeled with the isotope fluorine-18 it is used as a radioligand in positron emission tomography (PET) studies of the brain, i.e., studies of the 5-HT2A neuroreceptors.
Absorption spectroscopy - Anders Jonas Ångström - Astronomical spectroscopy - Astronomy - Black body - Blazar - Bremsstrahlung - Caesium - Cherenkov radiation - Color - Colors - Diffraction - Digital signal processing - Direct-sequence spread spectrum - Dispersion (optics) - Eigenstate - Eigenvalue - Electromagnetic radiation - Electromagnetic spectroscopy - Electromagnetic spectrum - Electromagnetism - Emission line - Emission spectrum - FM broadcast radio - Frequency domain - Frequency hopping - Frequency spectrum - Gamma ray burster - Hamiltonian (quantum mechanics) - History of radio - Hue - Isotope - Light - Optical brightener - Optical spectrum - Particle in a spherically symmetric potential - Piezoelectricity - Power spectrum - RADAR - Radio frequency - Radio - Radiocommunications Agency - Redshift - SETI - Spectrogram - Spectrometer - Spectroscopy - Spectrum analyser - Sunyaev-Zel'dovich effect - Supernova - Telecommunication - Timbre - Very high frequency - Visible light - White noise Sound waves.
From trace elements and isotope systematics, the origin of the lavas that form the Level Mountain Range requires an upper mantle source for both the basaltic and the salic lavas.
More Vocab Wordsdistract - take (one's attention) off something; upset emotionally; make anxious; ADJ. distracted
vigor - active strength; energy; enthusiasm; ADJ. vigorous
thrall - slave; bondage; slavery; Ex. Her beauty held him in thrall; CF. enthrall
calligraphy - beautiful writing; excellent penmanship
penchant - strong inclination; strong liking (esp. for something that is disapproved of by other people); Ex. penchant for fast cars
amulet - charm; talisman; an object worn believed to protect against evil, bad luck
bourgeois - middle class; selfishly materialistic; too interested in material possessions
plasticity - ability to be molded; ADJ. plastic: capable of being shaped or molded; Ex. plastic material such as clay
parity - equality; close resemblance; CF. disparate
grumble - complain; mutter discontentedly; grouch; N.