MONITORING THE LAYDOWN OF A REAGENT LIKE POTASSIUM FERRICYANIDE USING XRF SPECTROMETRY

摘要

A method for monitoring test sensors comprising the steps of, providing a test sensor comprising a reagent including an enzyme and a metal mediator; monitoring the amount of metal in the mediator of the reagent using X-ray fluorescence spectrometry and determining from the amount of metal in the mediator an amount of the reagent on the test sensor.