The expression product of ScFv was purified through Ni-NTA agarose metal affinity resin column and renatured.

经金属螯合亲和(Ni-NTA agarose)纯化和凝胶上在位复性后，ELISA果证实其具有良好的合β3抗原活性。

3, A chelating agent which forms an easily water-soluble metal chelated compound such as nitrilotriacetate (NTA) or ethylene diamine tetraacetate (EDTA) is incorporated in a detergent composition.

在洗衣粉中掺入螯合剂，例如次氮基三乙（NTA）者是乙二胺四乙（EDTA），这些螯合剂易于形成水溶性的金属螯合物。