Analysis and examination
Chemical analysis
Analysis and chemistry
Note under the subdivision [--Composition]
Reference under the heading [Chemistry, Analytic]
Use as a topical subdivision under substances, including individual chemicals and groups of chemicals and individual materials and types of materials, and individual plants and groups of plants, for works on methods of analyzing those substances, or analyzing a sample, to determine the presence or quantity of those substances. Also use under substances not produced naturally for works presenting the results of chemical analyses of those substances. For results of chemical analyses of natural substances of unfixed composition, use the subdivision [Composition.]
Analysis