isotope

Preposition: of

• iodine: Radioactive iodine ( Iodine-131 ) is a radioactive isotope of iodine, usually taken in an oral solution formulation.
• hydrogen: Deuterium is one of the heavier isotopes of hydrogen, having one extra neutron.
• uranium: For example, uranium-238 is a radioactive isotope of uranium with a half life of about 4.6 billion years.

Preposition: as

tracer: Mass spectrometry is used both as an analytical tool and for metabolic studies using stable isotopes as tracers.

Adjective modifier

• cosmogenic: Thus the changes in the open flux and cosmogenic isotopes do not appear to be linked to the 100-year drift in TSI.
• radioactive: A small amount of radioactive isotope, carbon called 14 C can then be added to the water they are kept in.
• radiogenic: Variation of radiogenic isotopes, trace elements and helium with distance from the center of the Iceland plume.
• stable: These stable isotopes can tell us a number of things about what a person's diet has been for most of their life.
• short-lived: Initially, it is placed in cooling ponds to allow short-lived radioactive isotopes to decay.

Modifies a noun

• geochemistry: The written report will consist of a 1500-word account of one area of isotope geochemistry selected from a list supplied by the course team.
• fractionation: Despite these strong isotope shifts, we found a largely uniform isotope fractionation.
• spectrometry: Breath samples were analyzed by continuous flow isotope ratio mass spectrometry.
• tracer: Mass spectrometry is used both as an analytical tool and for metabolic studies using stable isotope tracers.
• systematics: The trace elements and isotope systematics will be compared to current knowledge of MOR hydrothermal fluids.
• dilution: Target values were determined by isotope dilution GCMS at Professor Thienpont's laboratory in Gent.

Noun used with modifier

• strontium: The ratio of strontium isotopes changed rapidly in Early Jurassic oceans with the result that values are time diagnostic.
• oxygen: The power spectrum of oxygen isotope data from ocean sediment cores.
• sulfur: In addition, sulfur isotope analyzes have been performed on eleven corrosion samples from city centers.
• uranium: Based upon the measured concentrations the lifetime risk due to the ingestion of uranium isotopes was estimated.
• carbon: The release of methane into the atmosphere explains the sudden shift in carbon isotopes.