1.3, 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.

1.在洗衣粉中掺剂，例如次氮基三乙酸酯（NTA）或者是乙二胺四乙酸酯（EDTA），这些剂易于形成水溶性的金属物。

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

2.经金属亲和层析(Ni-NTA agarose)和凝胶上在位复性后，ELISA结果证实其具有良好的结β3抗原活性。