The secondary antibody is usually linked to biotin or to a reporter enzyme such as alkaline phosphatase or horseradish peroxidase.

Studies focusing on the biological effects of selenium have brought greater attention to Sodium Selenate due to its regulatory role in the function of the PP2A phosphatase protein.

Until, in May 2008, a routine visit to my doctor and a routine blood test produced evidence in the form of an alkaline phosphatase number that something might be wrong with my bones.