| Measurement of rate constant for gas-phase reaction of DDVP with OH radical by using LP-FTIR |
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| 作者姓名： | XU Yunping ZHU Tong LI Saijun |
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| 作者单位： | Center for Environmental Sciences, ESPC State Key Laboratory, Peking University, Beijing 100871, China,Center for Environmental Sciences, ESPC State Key Laboratory, Peking University, Beijing 100871, China,Center for Environmental Sciences, ESPC State Key Laboratory, Peking University, Beijing 100871, China |
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| 基金项目： | Supported by the National Fund for Distinguished Young Scholars of China (Grant No. 49925513) |
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| 摘 要： | ：Pollution caused by organic pesticides has received increasing attention. Until now, studies on organic pesticides pollution are mainly focused on soil and water. For reactions of organic pesticides in gas-phase, there are very little research results reported. Using a long path quartz reactor to simulate the atmospheric reaction of dimethyl_dichloro_vinyl_phosphate(DDVP) with OH radicals, the rate constant for the reaction at room temperature is measured at (3.06±0.46)×10-11 cm3 s-1 with Fourier transform infrared spectrograph.The result indicates that DDVP degrades relatively fast in the atmosphere and is unlikely to cause persistent pollution.
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| 关 键 词： | DDVP OH radical LP-FTIR rate constant |
Measurement of rate constant for gas-phase reaction of DDVP with OH radical by using LP-FTIR |
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| XU Yunping,ZHU Tong,LI Saijun.Measurement of rate constant for gas-phase reaction of DDVP with OH radical by using LP-FTIR[J].Progress in Natural Science,2002,12(3):185-187. |
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| Authors: | XU Yunping ZHU Tong LI Saijun |
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| Institution: | Center for Environmental Sciences, ESPC State Key Laboratory, Peking University, Beijing 100871, China |
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| Abstract: | Pollution caused by organic pesticides has received increasing attention. Until now, studies on organic pesticides pollution are mainly focused on soil and water. For reactions of organic pesticides in gas-phase, there are very little research results reported. Using a long path quartz reactor to simulate the atmospheric reaction of dimethyl_dichloro_vinyl_phosphate(DDVP) with OH radicals, the rate constant for the reaction at room temperature is measured at (3.06±0.46)×10-11 cm3 s-1 with Fourier transform infrared spectrograph.The result indicates that DDVP degrades relatively fast in the atmosphere and is unlikely to cause persistent pollution. |
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| Keywords: | DDVP OH radical LP-FTIR rate constant |
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