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Evaluation of handheld and portable Raman spectrometers with different laser excitation wavelengths for the detection and characterization of organic minerals

Chemical EngineeringPortable Raman SpectrometersEngineeringOrganic MineralsNatural SciencesSpectroscopyLaser SpectroscopySurface-enhanced Raman ScatteringAnalytical ChemistryChemistryOptical SpectroscopySpectrochemical AnalysisSpectroscopic Method