三唑酮在水中的光化学降解及其影响因素

Abstract

Abstract: Sunlight and high pressure mercury lamp(HPML)were used as light sources to study photolysis of triadimefon in aquatic solution and explore affecting factors.The results show that under different lamp-houses and in different translucid media the photolytic rate of triadimefon followed such a sequence as quartz cuvette+HPML>glass cuvette+HPML>quartz cuvette+sunlight>glass cuvette+sunlight>darkroom,and that the higher the initial concentration of triadimefon in the aquatic solution,the lower the photolytic rate.It was also found that acetone was an effective aid to improve photosensitivity of triadimefon to photolysis and its photosensitization rate was found distinctly related to its concentration.Moreover,the photolysis of triadimefon is photo-oxidation in nature,so dissolved oxygen in aquatic solution has an important effect on photolysis of triadimefon.

Key words: triadimefon, photolysis, influence factor, acetone, dissolved oxygen

CLC Number:

X592

LIU Yi-Hua, YANG Ren-Bin, GUO Zheng-Yuan, XIAO Qu. Photolysis of triadimefon in aquatic environment and its affecting factors[J]. Journal of Ecology and Rural Environment, 2005, 21(4): 68-71.

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Photolysis of triadimefon in aquatic environment and its affecting factors

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