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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 23, Number 10
BKCSDE 23(10)
October 20, 2002

Title	Development of an Enzyme-Linked Immunosorbent Assay for the Organophosphorus Insecticide Bromophos
Author	Won Chul Park, Young Ae Cho, Yoo Jung Kim, Bruce D. Hammock, Yong Tae Lee, Hye-Sung Lee
Keywords	Bromophos, Insecticide, Immunoassay, ELISA
Abstract	A competitive enzyme-linked immunosorbent assay (ELISA) was developed for the quantitative detection of the organophosphorus insecticide bromophos. Three bromophos analogues (haptens) were synthesized and were coupled to carrier proteins to use as immunogens or coating antigens. Rabbits were immunized with either one of two haptens coupled to bovine serum albumin (BSA) for production of polyclonal antibodies, and the sera were screened against one of the haptens coupled to ovalbumin (OVA). Using the serum with highest specificity and an enzyme tracer, an antibody-coated ELISA was developed, which showed an IC₅₀ of 40 ng/mL with a detection limit of 7 ng/mL. The antibodies in this assay showed negligible cross-reactivity with other organophosphorus pesticides except with the insecticides chlorpyrifos and fenitrothion.
Page	1399 - 1403
Full Text	PDF

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