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  • Title: Development of an ELISA for the detection of the residues of the fungicide iprovalicarb.
    Author: Lee JK, Park SH, Lee EY, Kim YJ, Kyung KS.
    Journal: J Agric Food Chem; 2004 Nov 03; 52(22):6680-6. PubMed ID: 15506800.
    Abstract:
    A competitive indirect enzyme-linked immunosorbent assay was developed for the fungicide iprovalicarb, using a polyclonal antibody produced against a hapten conjugated through the carboxyl group on the benzene ring to keyhole limpet hemocyanin. Under an optimized condition using a heterologous format, an IC(50) of 3.51 ng/mL and the lowest detection limit of 0.065 ng/mL were obtained. When the isopropoxy group was removed from the iprovalicarb structure for the synthesis of a hapten, the resulting hapten was not successful as an immunogen, indicating that the isopropyl moiety was an important epitope, as evidenced by the cross-reactivities of some structurally related compounds. When applied to the real crop and water samples, the recoveries were in the range of 80.52-144.70% (n = 4) and 72.11-100.43% (n = 4), respectively. Accordingly, this ELISA can be used as a useful method for monitoring iprovalicarb residues in crop and water samples.
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