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    STP1036

    Effect of Formulation on the Stability and Bioactivity of Methamidophos

    Published: 0


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    Abstract

    The objectives of this research were focused on the effect of formulation on the stability and bioactivity of new 50% formulated solution. Laboratory studies on the storage stability under an accelerated condition (50°C), the physical performance test with 622 ppm hard water, and the 48 h mortality on Plutella xylostella L. were conducted. Results from the stability-analysis and physical performance test showed that about 16 new formulated 50% solutions were in acceptable quality as compared with the OECD (Organization for Economic Cooperation and Development) guideline, and the sixteen formulated products were then analyzed for the 48 h mortality on the Plutella xylostella L. at recommended rate in dipping method. The result indicated that formulas of 3, 8 and 9 were better than the selected domestic product and imported product in both stability and bioactivity.

    Keywords:

    standard test water, physical stability, chemical stability, OECD guideline


    Author Information:

    Lo, C-C
    research scientistsresearch assistants, TACTRI., Wufeng, Taichung Ksien,

    Ho, M-H
    research scientistsresearch assistants, TACTRI., Wufeng, Taichung Ksien,

    Kao, S-S
    research scientistsresearch assistants, TACTRI., Wufeng, Taichung Ksien,

    Tzeng, C-C
    research scientistsresearch assistants, TACTRI., Wufeng, Taichung Ksien,


    Committee/Subcommittee: E35.22

    DOI: 10.1520/STP22912S