If you made any changes in Pure these will be visible here soon.

Fingerprint Dive into the research topics where Hiroshi Naraoka is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

Chemical Compounds

Carbon
Carbon Isotopes
Sediments
Hydrogen
Meteorites
Fractionation
Isotopes
Biological materials
Organic compounds
Alkanes
Chemical analysis
Polycyclic Aromatic Hydrocarbons
Biomarkers
Organic carbon
Lipids
Fatty Acids
Biosynthesis
Mass spectrometry
Electrospray ionization
Phytol
Hydrocarbons
Lakes
Sulfur Isotopes
Sterols
Molecules
Carboxylic acids
Carboxylic Acids
Sulfur
Trichloroethylene
Condensation
Sedimentary rocks
Gas hydrates
Graphite
Degradation
Oxygen Isotopes
Water
Quartz
Nitrogen
Glycerol
Asteroids
Acids
Bacteria
Ethylenes
Kerogen
High performance liquid chromatography
Tetrachloroethylene
Plankton
Nitrogen Isotopes
Aldehydes
Isomers

Earth & Environmental Sciences

carbon
isotopic composition
carbon isotope
organic matter
organic compound
Murchison meteorite
carbonaceous chondrite
biomarker
chondrite
hydrogen isotope
parent body
sediment
hydrogen
PAH
meteorite
stable isotope
marine sediment
isotope
mass spectrometry
organic carbon
total organic carbon
alkane
fatty acid
fractionation
sterol
lipid
acid
sulfur
banded iron formation
C3 plant
alkenone
carboxylic acid
lake
gas hydrate
degradation
ion
oxidation
early Earth
nitrogen
carbon isotope ratio
Fourier transform
sulfur isotope
oxygen isotope
isotopic fractionation
methanol
hydrocarbon
pyrolysis
trichloroethylene
condensation
sedimentary rock

Physics & Astronomy

Chemistry and Materials

carbon isotopes
organic compounds
carbon
polycyclic aromatic hydrocarbons
carbonaceous materials
hydrogen isotopes
molecules
carboxylic acids
isotopes
cyclic compounds
fatty acids
aldehydes
acetic acid
pyrolysis
ice
methyl alcohol
nitrogen
ammonia
isomers
nitrogen isotopes
acids

Aerospace Sciences

Murchison meteorite
carbonaceous chondrites
chondrites
meteorites
mass spectroscopy
meteorite parent bodies
lakes
ultraviolet radiation
asteroids
secondary ion mass spectrometry
Bering Sea
sample return missions

Geosciences

sediments
Japan

General

fractionation
isotope ratios
catchers
condensation
degradation
suburban areas
solid state
aqueous solutions
occurrences

Life Sciences

algae
chemical evolution

Mathematical and Computer Sciences

sequential analysis

Engineering

high resolution
ionization

Astronautics

interplanetary spacecraft