[The development of a convenient enzyme-immunoassay method to detect human serum ferritin]

We have developed an enzyme-immunoassay (EIA) method which is easily and conveniently handled to detect human serum ferritin instead of using the radioisotopes. Rabbit anti human liver ferritin antiserum was adsorbed to a 96 well microplate. Then, sera from patients were put into each well following the addition of peroxidase-labelled rabbit anti human liver ferritin antiserum. Therefore, this is composed of so-called "sandwich" method. One of the beneficial characteristics in this method is to be able to examine many samples at once and easily. Based on this principle, this is clinically useful for screening the abnormal level of serum ferritin from various patients.