Spectrum analysis Chemistry, Analytic 23 Molecular spectroscopy 17 Organic compounds 15 Analysis 11 Chemistry, Organic-Spectra 7 Chemistry, Organic 6 American poetry 4 Atomic spectroscopy 4 Dissertations, Academic (Ph.D) 4 Infrared spectroscopy 4 Nuclear magnetic resonance spectroscopy 4 Organic chemistry 4 Spectra 4 Spectroscopy 4 Thesis (Ph.D)-Physics 4 X-ray spectroscopy 4 Absorption spectra 3 Electronics 3 Fluorescence spectroscopy 3 Lasers 3 Molecular spectra 3 Spectrochemical analysis 3 Ultraviolet spectroscopy 3 Analyse spectrale 2 Atomic absorption spectroscopy 2 Catalysis 2 Chemistry 2 Magnetic resonance microscopy 2 Magnetism 2