| 液相吸收-高效液相色谱法测量气相OH方法的建立 |
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| 引用本文： | 任信荣,邵可声,唐适宜. 液相吸收-高效液相色谱法测量气相OH方法的建立[J]. 环境化学, 2001, 20(1): 81-85 |
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| 作者姓名： | 任信荣 邵可声 唐适宜 |
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| 作者单位： | 北京大学环境科学中心, |
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| 基金项目： | 国家自然科学基金资助项目(批准号:29837190) |
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| 摘 要： | 利用水杨酸溶液相OH自由基，生成的荧光产物2，5－二羟苯甲酸用高效液相色谱法分离测定，推算得到气相OH浓度，根据此原理在实验室条件下，建立了气相OH自由基的测定方法，并利用气相OH标准发生源确定了最优实验条件，得到了气相OH浓度与荣光响应关系。由相吸收－高效液相色谱法测定的浓度与标准OH气流中的理论浓度比较一致。
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| 关 键 词： | 氢氧自由基 液相吸收 高效液相色谱 测量 |
MEASUREMENT OF GAS-PHASE OH USING LIQUID PHASE SCRUBBING AND HIGH PERFORMANCE LIQUID CHROMATOGRAPHY |
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| REN Xinrong,SHAO Kesheng,Tang Shiyi. MEASUREMENT OF GAS-PHASE OH USING LIQUID PHASE SCRUBBING AND HIGH PERFORMANCE LIQUID CHROMATOGRAPHY[J]. Environmental Chemistry, 2001, 20(1): 81-85 |
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| Authors: | REN Xinrong SHAO Kesheng Tang Shiyi |
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| Abstract: | A calibration system for measuring gas-phase hydroxyl radicals (OH) was established by liquid- phase scrubbing and high performance liquid chromatography (HPLC). It was based on the OH reaction with salicylic acid which produces a stable fluorescent product, 2,5 -dihydroxybenzoic acid determined by HPLC and fluorescence detection. The OH concentration deduced from the amount of product is relatively uniformed with that in the calibration OH flow. |
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| Keywords: | hydroxyl radical liquid-phase scrubbing HPLC measurement. |
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