spectrometer
An instrument used to measure the properties of light or other electromagnetic radiation, typically its intensity as a function of wavelength or frequency, to analyze the composition or properties of a substance.
There are many types of spectrometers (e.g., mass spectrometer, NMR spectrometer, UV-Vis spectrometer), each designed for specific types of radiation or analytical tasks.
Word relationships
- spectrograph: A spectrograph records the spectrum, while a spectrometer measures and analyzes it, often digitally.
Commonly confused with
- microscope: A microscope magnifies objects visually; a spectrometer analyzes light's properties to infer composition.
Word family
- spectrometry (noun): The technique of using a spectrometer.
- spectral (adjective): Relating to a spectrum.
Collocations
- mass spectrometer
- optical spectrometer
- UV-Vis spectrometer
- calibrate a spectrometer
- use a spectrometer
Example sentences
- "Astronomers used a powerful spectrometer to analyze the light from distant stars, revealing their chemical composition." Astronomy research
- "The lab technician operated the UV-Vis spectrometer to determine the concentration of the unknown compound in the solution." Chemical analysis
Memory hook
Think of 'SPECTRA' (colors of light) and 'METER' (measure). It measures spectra. SPECTRO-meter: measures light spectra
When not to use
Do not use 'spectrometer' as a general term for any measuring device; it specifically refers to instruments that analyze spectra.
Fun facts
- The first spectrometer was essentially a prism and a scale, used by Isaac Newton to study sunlight.
- Spectrometers are crucial in fields like astronomy, forensics, environmental monitoring, and medical diagnostics.
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