Biological Activity Fully biologically active when compared to standard. The biological activity determined by a chemotaxis bioassay using human T-lymphocytes is in a concentration range of 1.0-10 ng/ml. Physical Appearance Sterile Filtered White lyophilized (freeze-dried) powder. Formulation Lyophilized from a 0.2 μm filtered concentrated solution in 1 × PBS, pH 7.2.
上海普欣生物技术有限公司
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