plural of spectrometer

(analytical chemistry) An optical instrument for measuring the absorption of light by chemical substances; typically it will plot a graph of absorption versus wavelength or frequency, and the patterns produced are used to identify the substances present, and their internal structure.

plural of mass spectrometer

A device used in mass spectrometry to discover the mass spectrum of a given substance.

(analytical chemistry) A device for analyzing the chemical composition of substances using the characteristic spectral lines produced by their interaction with X-rays.

plural of X-ray spectrometer