speciation analysis

in chemistry
https://doi.org/10.1351/goldbook.ST06848
Analytical activities of identifying and/or measuring the quantities of one or more individual chemical species in a sample.
Source:
PAC, 2004, 76, 1033. (Glossary of terms used in toxicokinetics (IUPAC Recommendations 2003)) on page 1070 [Terms] [Paper]