following the intraduodenal installation of purified 125i-labeled human trypsin up to about 4 -- 6 % of the label was measured after 15 -- 30 min in blood plasma and found to separate in a dextran-gel filtration system similar to purified human trypsin ( -125i ) after incubation with human serum .
C0032105
blood plasma
C0229671
serum