InstantChek Protein A Gold Design your own assay Kit. The InstantChekTM Protein A Gold test kit is a simple, rapid sensitive specific test which allows you to design your own antibody-antigen test. Kit Contents: 100 test units, gold reagents, reconstitution buffer, wash buffer, transfer pipettes, instruction booklet, plus 100 whole blood tubes for filtering samples. Product volume may vary. With the exception of Diagnostic Microbiology Products all biochemicals described are for research use only. The biochemical reagents are not designed for use in therapeutic or diagnostic applications. We are unable to ship to individuals. Please place all orders through an established firm or institution. Nothing disclosed is to be construed as a recommendation to use our products in violation of any patents. All research products are offered without warranty or guarantee, since the ultimate condition of use and the variability in material handling are beyond our control.