quantitative analysis vs quantitative chemical analysis

quantitative analysis and quantitative chemical analysis both are nouns.

Word	Noun	Adjective	Verb	Adverb
quantitative analysis	Yes	No	No	No
quantitative chemical analysis	Yes	No	No	No

As nouns, quantitative analysis and quantitative chemical analysis are synonyms defined as:

quantitative analysis and quantitative chemical analysis: chemical analysis to determine the amounts of each element in the substance

quantitative analysis (noun)	quantitative chemical analysis (noun)
chemical analysis to determine the amounts of each element in the substance	chemical analysis to determine the amounts of each element in the substance