Spectrophotometry Flashcards
What is the study of the interaction between electromagnetic radiation and matter?
Spectroscopy
What do you call the measurement of electromagnetic radiation to obtain information about a system?
Spectrometry
What refers to the excitation of the analyte by a chemical reaction?
Chemiluminescence
What refers to the measurement of the amount of light absorbed as a function of wavelength?
Absorption spectroscopy
This law determines how the amount of attenuation depends on the concentration of the absorbing molecules.
Absorption Law (Beer’s Law)
What device contains an entrance slit and exit slit to isolate a small band of wavelengths?
Monochromator
What spectra occur when radiating species are individual atoms or ions in the gas phase?
Line spectra
What spectra occur due to the presence of gaseous radicals or small molecules?
Band spectra
What spectra occur when solids are heated to incandescence?
Continuous spectra
What absorption undergoes vibrational and rotational transitions aside from electronic transitions?
Molecular absorption
