appraisal of the biological activity of a substance by testing its effect on an organism and comparing the result with some agreed standard
an appraisal of the state of affairs
analyze (chemical substances)
a quantitative or qualitative test of a substance (especially an ore or a drug) to determine its components; frequently used to test for the presence or concentration of infectious agents or antibodies etc.
make an effort or attempt
a written report of the results of an analysis of the composition of some substance
a substance that is undergoing an analysis of its components
a mark on an article of trade to indicate its origin and authenticity