The invention discloses an indirect competition
ELISA method for tetrabromo
bisphenol A. The
assay method comprises the following methods: 1) synthesizing an
artificial antigen through the tetrabromo
bisphenol A; 2) preparing a tetrabromo
bisphenol A polyclonal
antibody: taking the conjugate of the tetrabromo
bisphenol A and BSA as an immunizing
antigen, immunizing Kunming white rats, and utilizing the conventional polyclonal
antibody preparation and purification technologies to acquire the tetrabromo
bisphenol A polyclonal
antibody; 3) assaying the indirect competition ELISA: choosing an envelope
antigen of which the concentration is 10 [mu]g / mL, and performing
dilution with a
carbonate buffer solution; washing an ELISA plate, adding the
buffer solution to seal the ELISA plate and washing the ELISA plate again; carrying out competition, washing the ELISA plate, adding a second antibody and washing the ELISA plate again; performing a
chromogenic reaction; finally, measuring with a
microplate reader to acquire that a light absorption value is 450nm (OD 450). The invention constructs the indirect competition
ELISA method for the tetrabromo
bisphenol A, and provides a quick and efficient
assay means for assaying the residual tetrabromo bisphenol A in
atmosphere; as the method adopts the polyclonal antibody, the cost is lower and the stability is better.