| 大气环境中OH自由基测定 |
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| 引用本文： | 潘循皙,陈士明.大气环境中OH自由基测定[J].上海环境科学,1999,18(2):59-61. |
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| 作者姓名： | 潘循皙 陈士明 |
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| 作者单位： | 复旦大学 上海200433
(潘循皙，陈士明)，复旦大学 上海200433(侯惠奇) |
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| 基金项目： | 上海市环境保护局和上海市科委共同资助项目,批准号:952312027 |
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| 摘 要： | 采用自旋捕集技术和电子自旋共振法结合测定大气环境中ＯＨ自由基，首先用自旋捕集剂将ＯＨ自由基捕集，生成比较稳定的自然旋加合物，，然后带回实验室处理测定，该法为开展大气光化学研究提供了一种采样方便，利于实测的方法，据３个采样点的实测结果表明，相对误差约为３５％，比文献所示结果略大。
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| 关 键 词： | 大气环境 OH自由基 测定方法 光化学污染 |
Determination of OH Free Radical Concentration in Atmosphere |
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| Pan Xunxi Chen Shiming Hou Huiqi.Determination of OH Free Radical Concentration in Atmosphere[J].Shanghai Environmental Science,1999,18(2):59-61. |
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| Authors: | Pan Xunxi Chen Shiming Hou Huiqi |
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| Abstract: | Determination of OH free radical concentration in atmosphere has been conducted by using ESR. A spin trap 4-POBN was used for trapping OH free radical in atmosphere and forming a stable OH-adduct. The adduct was extracted and analyzed by ESR spectroscopy. The sampling method is simple and convenient. It also showed that OH radical concentration at three different sites were determined, the relative deviation was about 35%, greater than the references. |
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| Keywords: | Atmospheric environment OH free radical Determination Photochemical pollution ESR Trap |
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