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The Mass Spectrometer. In order to measure the characteristics of individual molecules, a mass spectrometer converts them to ions so that they can be moved about and manipulated by external electric and magnetic fields. The three essential functions of a mass spectrometer, and the associated components, are:
Raman spectroscopy was used to detect ABP isomers at very low concentrations via surface enhanced Raman scattering (SERS), in which the Raman signal is enhanced by the presence of silver or gold nanoparticles via the adsorption of analytes.