spectroscope for obtaining a mass spectrum by deflecting ions into a thin slit and measuring the ion current with an electrometer
"The analytical chemist calibrated the high-end spectrometer to ensure accurate deflection of ions before running the sample analysis."
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.
"The chemist connected the new spectrometer to the sample vial so she could generate an absorption spectrum to confirm the unknown compound's molecular structure."