Glucose can be quantified by copper iodometry. This particular analysis is an example of iodometry. Like iodine monochloride, IBr is used in some types of iodometry. This interaction between starch and triiodide is also the basis for iodometry. The iodine content and thus the active chlorine content can be determined with iodometry. Iodometry in its many variations is extremely useful in volumetric analysis. The popular iodometry approach uses iodine in the presence of a starch indicator.