| 实时在线单颗粒气溶胶飞行时间质谱仪的研制 |
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| 引用本文： | 黄正旭,高伟,董俊国,李磊,粘慧青,傅忠,周振.实时在线单颗粒气溶胶飞行时间质谱仪的研制[J].质谱学报,2010,31(6):331-336. |
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| 作者姓名： | 黄正旭 高伟 董俊国 李磊 粘慧青 傅忠 周振 |
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| 作者单位： | 1.上海大学环境污染与健康研究所,上海200072；2.中国科学院广州地球化学研究所,有机地球化学国家重点实验室，广东 广州510640；3.中国科学院研究生院，北京100049；4.广州禾信分析仪器有限公司，广东 广州510663 |
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| 基金项目： | 国家自然科学基金，广东省科技厅，广州市科技局资助 |
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| 摘 要： | 针对大气气溶胶单颗粒粒径及成分同时检测的要求,自行研制了一台实时在线单颗粒气溶胶飞行时间质谱仪,并对仪器各部分的原理和结构进行了描述。用实验室产生的标准气溶胶粒子对仪器进行粒径和质量数校正,同时考察激光能量对邻苯二甲酸二辛脂(DOP)气溶胶颗粒的打击效率及其谱图的影响。室内气溶胶颗粒采样证明了该仪器具有较高的同位素测量精度及质量分辨率。
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| 关 键 词： | 气溶胶颗粒 空气动力学透镜 测径 解吸/电离 飞行时间 |
Development of a Real-Time Single Particle Aerosol Time-of-Flight Mass Spectrometer |
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| HUANG Zheng-xu,GAO Wei,DONG Jun-guo,LI Lei,NIAN Hui-qing,FU Zhong,ZHOU Zhen.Development of a Real-Time Single Particle Aerosol Time-of-Flight Mass Spectrometer[J].Journal of Chinese Mass Spectrometry Society,2010,31(6):331-336. |
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| Authors: | HUANG Zheng-xu GAO Wei DONG Jun-guo LI Lei NIAN Hui-qing FU Zhong ZHOU Zhen |
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| Affiliation: | 1. Institute of Environmental Pollution and Health, Shanghai University, Shanghai 200072, China;2. State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;3. Graduate School of Chinese Academy of Sciences, Beijing 100049, China;4. Guangzhou Hexin Analytical Instruments Co., LTD., Guangzhou 510663, China |
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| Abstract: | In accordance to the requirement of detecting the size and chemical compositions of individual aerosol particles simultaneously, we developed a real-time single particle aerosol time of flight mass spectrometer (SPAMS). Working principle and structures of the components in SPAMS were presented. Laboratory generated particles were used for size and mass spectra calibration. The effects of different laser energies on the DOP’s hit rate and mass spectrum were investigated as well. Indoor aerosol particle detection manifests its high measurement accuracy of isotope abundance and mass resolution. |
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| Keywords: | aerosolparticle aerodynamiclens sizing desorption/ionization timeofflight |
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