Development of an Enzyme-Linked Immunosorbent Assay for the Detection of Hydroxytriazines

Horacio Kido, Marvin H. Goodrow, Valerie Griffeth, Anne D. Lucas, Shirley J. Gee, Bruce D. Hammock

Research output: Contribution to journalArticle

23 Scopus citations

Abstract

Hydroxytriazines are environmental decomposition products of s-triazine herbicides. Enzyme-linked immunosorbent assays (ELISAs) in various formats for the detection of hydroxypropazine, hydroxyatrazine, and hydroxysimazine were developed. 6-{4-Methoxy-6-[(1-methylethyl)amino]-1,3,5-triazin-2-yl}aminohexanoic acid was used as the immunizing hapten. One of the resulting ELISAs has IC50 values of 0.002, 0.004, and 0.017 μM (0.4, 0.8, and 3.1 ppb) for hydroxypropazine, hydroxyatrazine, and hydroxysimazine, respectively. This ELISA utilizes a coated antigen format with a simazine - mercaptopropanoic acid hapten conjugated to conalbumin as the coating antigen. The assay parameters are unchanged at pH values between 5.0 and 8.0 and at ionic strengths from 0.13 to 1.0 M phosphate-buffered saline. Methanol does not affect the assay up to 13%, whereas acetonitrile and acetone cause a decrease of sensitivity at 3.1%. Groundwater fortified with hydroxyatrazine was analyzed according to this method. Good correlations with spike levels were observed, making this assay potentially valuable for the screening of groundwater samples containing parts per trillion levels of hydroxytriazine contamination.

Original languageEnglish (US)
Pages (from-to)414-424
Number of pages11
JournalJournal of Agricultural and Food Chemistry
Volume45
Issue number2
StatePublished - Feb 1997

Keywords

  • ELISA
  • Enzyme immunoassay
  • Herbicide metabolites
  • Hydroxyatrazine
  • Hydroxypropazine
  • Hydroxysimazine
  • Hydroxytriazine
  • S-Triazine

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Food Science
  • Chemistry (miscellaneous)

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    Kido, H., Goodrow, M. H., Griffeth, V., Lucas, A. D., Gee, S. J., & Hammock, B. D. (1997). Development of an Enzyme-Linked Immunosorbent Assay for the Detection of Hydroxytriazines. Journal of Agricultural and Food Chemistry, 45(2), 414-424.