spectrum analysis vs spectroscopic analysis

spectrum analysis and spectroscopic analysis both are nouns.

Word	Noun	Adjective	Verb	Adverb
spectrum analysis	Yes	No	No	No
spectroscopic analysis	Yes	No	No	No

As nouns, spectrum analysis and spectroscopic analysis are synonyms defined as:

spectrum analysis and spectroscopic analysis: the use of spectroscopes to analyze spectra

Other synonyms of spectrum analysis include spectrographic analysis, spectrometry, spectroscopy.

spectrum analysis (noun)	spectroscopic analysis (noun)
the use of spectroscopes to analyze spectra	the use of spectroscopes to analyze spectra