Related by context. Frequent words. (Click for all words.) 66 isotopic composition 65 isotope ratios 65 chemical composition 65 isotopic 64 infrared spectroscopy 64 spectroscopic 62 analyte 62 colorimetric 62 nanosized 61 stable isotope 61 anisotropy 61 abundances 60 spectral signatures 60 oxygen isotopes 60 X ray fluorescence 60 spectrometry 60 Raman spectroscopy 60 electron density 59 aragonite 59 scanning electron microscopy 59 microfossils 58 microstructures 58 nanomechanical 58 zeolites 58 biomolecule 58 diffraction pattern 58 Cepheids 58 photoluminescence 58 morphologies 57 photometer 57 isotropic 57 perovskite 57 Fig. 1A 57 particle sizes 57 reflectance 57 sorption 57 X ray diffraction 57 mass spectroscopy 57 geoid 57 superlens 57 confocal microscopy 57 spectral signature 56 substorm 56 QDs 56 noble gases 56 lunar soil 56 photometry 56 radial velocity 56 anisotropic 56 spherules 56 spectrographs 56 manganese oxide 56 silicates 56 chirality 56 magnetization 56 calorimeter 56 nanocrystal 56 biogeochemical 56 magnetic resonance spectroscopy 55 mineralogical 55 photonic crystal 55 transmission electron microscopy 55 osmium 55 solar corona 55 nucleation 55 foraminifera 55 quantitate 55 zircons 55 crystallographic 55 planetary nebulae 55 nano particle 55 interferometry 55 NMR spectroscopy 55 metabolomic 55 photometric 55 SWNTs 55 spectroscopy 55 dielectric constant 55 microscopy techniques 55 fluorescent molecules 55 neutron scattering 55 absorbance 55 otoliths 55 XRD 55 PCR amplification 55 GPa 54 emissivity 54 nanoscopic 54 mineralogy 54 spectra 54 surface roughness 54 olivine 54 interferometric 54 electrophoretic 54 immunofluorescence 54 cuprates 54 dispersive 54 spinel 54 Type Ia supernovae 54 fluorophores 54 marine sediments