Journal of Capital Medical University ›› 1987, Vol. 8 ›› Issue (4): 277-279.

• 论著 • Previous Articles     Next Articles

The Invesitigation on the Residue and Dynamics of the Deltamethrin in Cotton by Gas Chromatography

Liu Huimin1, Waug Chengjiang1   

  1. 1. Department of Chemistry;2. Institute for the Control of Agrochemicals, Ministry of Agriculture, Aninal Husbandry and Fishery
  • Received:1900-01-01 Revised:1900-01-01 Online:1987-10-15 Published:1987-10-15

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Abstract: With the electron capture detector(ECD-63Ni)of SP-2308 Gas chroma- tograph,the determination of ultimate residue of deltamethrin in cotton-seed and soil of cotton field was obtained respectively.The residue was with- in the scope allawed by FAO/WHO,whether 2.5g/mu or 1.5g/mu of active ingredient of deltamethrin was applied.The insecticide Was sprayed 4 or 5 times and the interval between the last spray and the harvest Was 35 or 20 days.The residue dynamic equation of deetamethrin in cotton-leaves and the soil Was negative exponential function.The half-lift of deltame-thrin in the cotton-leaves Was 4.19 days and 3.51 days in the soil.

Key words: deltamethrin, gas chromatographv