| http://www.w3.org/ns/prov#value | - The process of claim 1 wherein the antibody is an antibody to bile acid, the solution is buffered to a pH of from 5.0 to 10.0, the antibody titer of the solution is from 1:103 to 1:106, and the ionic strength of the solution is from 0.5 to 10.0.
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