Characterization of s-triazine antibodies and comparison of enzyme immunoassay and biotin-avidin enzyme immunoassay for the determination of s-triazine

So Young Kim, Young Ah Jo, Jeonguen Choi, Myung Ja Choi

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Triazines have been used widely as herbicides and known to cause environmental contamination. For developing ELISA of s-triazines, six kinds of s-triazine derivatives (one from simazine, one from atrazine and four from cyanuric chloride) which contained a C3- or C6-carboxylic acid group bridge were prepared. These derivatives were conjugated to bovine serum albumin (BSA) for the use of immunogens and to KLH for the use of coating ligands on the microtiter plate wells. Polyclonal antibodies produced from rabbit or sheep using atrazine-BSA (1b-BSA) and simazine-BSA (1a-BSA) immunogens. These antibodies were characterized and biotinylated for the use of enzyme immunoassay (EIA). We evaluated EIA and biotin-streptavidin mediated EIA in terms of the sensitivities and specificities with these antibodies. The results in both assay systems showed that coating ligand synthesized from atrazine derivative was better than that from simazine derivative. Comparing binding ability between C3-carboxylic acid and C6-carboxylic acid spacers of N-alkyl group in s-triazine ring, C3-carboxylate-KLH (2c-KLH) derived from atrazine showed better sensitivity for the both assay systems. The detection limit was found to be 0.01 ppb in biotin-streptavidin mediated EIA (B-Av EIA). Comparing IC90 values of EIA (0.5 ppb) and B-Av EIA (0.05 ppb), B-Av EIA was able to detect one order lower concentration range of atrazine than EIA.

Original languageEnglish (US)
Pages (from-to)163-172
Number of pages10
JournalMicrochemical Journal
Volume68
Issue number2-3
DOIs
StatePublished - 2001

Fingerprint

Triazines
Avidin
Atrazine
Biotin
Streptavidin
Simazine
Bovine Serum Albumin
Antibodies
Enzymes
Carboxylic Acids
Derivatives
Assays
Ligands
Coatings
Herbicides
Contamination

Keywords

  • Antibody
  • Biotin-streptavidin
  • Enzyme-linked immunosorbent assay
  • Immunogen
  • s-Triazine

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy

Cite this

Characterization of s-triazine antibodies and comparison of enzyme immunoassay and biotin-avidin enzyme immunoassay for the determination of s-triazine. / Kim, So Young; Jo, Young Ah; Choi, Jeonguen; Choi, Myung Ja.

In: Microchemical Journal, Vol. 68, No. 2-3, 2001, p. 163-172.

Research output: Contribution to journalArticle

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