Definition of "chemical analysis" [chemical analysis]
The act of decomposing a substance into its constituent elements (noun)
WordNet. Princeton University. 2010.
Use "chemical analysis" in a sentence
"In the decades since it came to me, the scientific study of documents has made huge strides, from the chemical analysis of writing materials to radiocarbon dating to the grammatical analyses of the words themselves."
"I trusted my sample, which I had received from Gerald Cohen, and when I subjected it to a careful chemical analysis I found it was over 99 percent pure."