role analyte role pH (technically the inverse log of [H+]) may be considered a quality; this remains to be tested. Feb 10, 2009. changes after discussion at OBI Consortium Workshop Feb 2-6, 2009. accepted as core term. James Malone interestingly, an analyte is still an analyte even if it is not detected. for this reason it does not bear a specified input role qualities such as weight, color are not assayed but measured, so they do not fall into this category. Glucose in blood (measured in an assay to determine the concentration of glucose). http://www.ebi.ac.uk/efo/EFO_0001452 analyte role GROUP: Role Branch OBI A measurand role borne by a molecular entity or an atom and realized in an analyte assay which achieves the objective to measure the magnitude/concentration/amount of the analyte in the entity bearing evaluant role. ready for release