
IndraLab
Statements
sparser
"The labelled heparin, in phosphate buffer saline (PBS), was kept at C4±C.
Heparin binding assay
Polyurethane disks were conditioned with 1 ml of PBS-NaN3 (0.14 M sodium chloride, 0.02% sodium azide, 0.01 M phosphate, pH 6.8) for 12 h at 22±C. Then, 125I-Hep (5 £ 104 cpm) was added to Eppendorf tubes, each of them containing a single polyurethane disk immersed in 0.5 ml of PBS-NaN3, and incubated in an end-over-end mixer for increasing times (from 0.5 to 24 h)."