Subject
isotope application
67
tracer technique
18
isotope geochemistry
12
labeled compound
8
radiochemistry
8
stable isotope
8
isotope
7
radioisotope
7
radiation chemistry
6
radiopharmaceutical
6
nuclear chemistry
5
autoradiography
4
isotope production
4
labeling
4
plant soil relationship
4
technetium
4
climatic change
3
isotope dating
3
isotope effect
3
isotope exchange
3
isotope ratio
3
isotope separation
3
radionuclide
3
soil physics
3
carbohydrate
2
complex
2
cyclotron
2
diagnostic technique
2
hydrological cycle
2
isotopic equilibration
2
liquid scintillation counting
2
modeling
2
nuclear medicine
2
nutrition
2
paleoclimatology
2
radiochromatography
2
soil science
2
tritium
2
C-014 compound
1
NMR (nuclear magnetic resonance)
1
X-ray spectrum
1
actinide
1
activation analysis
1
agricultural use
1
agriculture
1
alpha decay
1
amino acid
1
animal metabolism
1
astatine
1
atmospheric calculation
1
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