PURIFIED SERUM ALBUMIN AND IMMUNOLOGICAL MEASUREMENT METHOD

摘要

Disclosed is a purified serum albumin having less difference among different lots. Also disclosed is an immunological measurement method which utilizes the purified serum albumin, has high responsiveness, and causes few non-specific reactions. Specifically disclosed is a purified serum albumin for use as a blocking agent and/or in a suspension of an insoluble carrier in an immunological measurement method. The purified serum albumin comprises an albumin fraction which is eluted with an eluent having a salt concentration of 150 mM or less in the purification by anion exchange chromatography.