spectroscopy
/spek'trɔskəpi/
Học thuậtThân thiện
Definition
Noun: 1. A scientific technique: The branch of science concerned with the investigation and measurement of spectra produced when matter interacts with or emits electromagnetic radiation. It involves the use of a spectroscope or other instruments to analyze these spectra to determine the composition, structure, or physical properties of a substance. 2. An analytical method: The practice of using instruments to obtain and study the spectrum of light or other radiation from any source, used extensively in chemistry, physics, and astronomy for qualitative and quantitative analysis.
Usage and Examples
- General Scientific Context:
- Astronomers use spectroscopy to determine the chemical composition of distant stars.
- The laboratory specializes in infrared spectroscopy for analyzing organic compounds.
- Describing a Field or Technique:
- Her research involves advanced molecular spectroscopy.
- Mass spectrometry is often coupled with optical spectroscopy for more detailed analysis.
Advanced Usage and Concepts
- "to perform spectroscopy": To carry out a spectroscopic analysis.
- The team will perform spectroscopy on the newly synthesized material.
- "spectroscopic analysis": The process or result of examining a spectrum.
- The spectroscopic analysis revealed traces of sodium and potassium.
Variants and Related Words
- Spectroscope (n): An optical instrument used for forming and examining spectra.
- Spectroscopic (adj): Relating to or employing spectroscopy (e.g., , ).
- Spectrometer (n): A device that measures properties of light over a specific portion of the electromagnetic spectrum, often used in spectroscopy.
- Spectrum (n): The band of colors, as seen in a rainbow, or more generally, the distribution of energy emitted or absorbed by a substance, which is the subject of spectroscopic study.
Synonyms
- Spectrometric analysis (when referring to measurement)
- Spectral analysis
Related Phrases and Compounds
- Absorption spectroscopy: A technique that measures the absorption of radiation as a function of frequency or wavelength.
- Emission spectroscopy: A technique that analyzes the light emitted by a substance.
- Raman spectroscopy: A spectroscopic technique used to observe vibrational, rotational, and other low-frequency modes in a system.
- Ultraviolet-visible spectroscopy: A technique that uses light in the visible and adjacent ranges to analyze molecules.
Noun
- the use of spectroscopes to analyze spectra