大气与环境光学学报 ›› 2024, Vol. 19 ›› Issue (1): 1-21.doi: 10.3969/j.issn.1673-6141.2024.01.001

• 综述 •    下一篇

蒸汽吸附分析仪在气溶胶吸湿性研究中的应用

顾文君 1,2, 袁野 1, 陈兰夏迪 3, 曹亚楠 1, 彭超 4,5*, 唐明金 3   

  1. 1 安徽省人工影响天气办公室, 安徽 合肥 230031; 2 中国科学院合肥物质科学研究院安徽光学精密机械研究所大气物理化学研究室, 安徽 合肥 230031; 3 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; 4 广东省环境科学研究院, 大气环境研究所, 广东 广州 510045; 5 粤港澳生态环境科学中心, 大气光化学联合研究实验室, 广东 广州 511363
  • 收稿日期:2023-09-13 修回日期:2023-11-11 出版日期:2023-11-28 发布日期:2024-02-06
  • 通讯作者: E-mail: chao.peng1027@gmail.com E-mail:mingjintang@gig.ac.cn
  • 作者简介:顾文君 (1996- ), 女, 安徽宿州人, 博士, 工程师, 主要从事大气颗粒物吸湿性研究。E-mail: gwj12271@163.com
  • 基金资助:
    国家重点研发计划 (2019YFC1510303), 安徽省气象局创新发展专项 (CXB202304)

Application of vapor sorption analyzer in aerosol hygroscopicity studies

GU Wenjun 1,2, YUAN Ye 1, CHEN Lanxiadi 3, CAO Yanan 1, PENG Chao 4,5*, TANG Mingjin 3   

  1. 1 Anhui Weather Modification Office, Hefei 230031, China; 2 Laboratory of Atmospheric Physico-Chemistry, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China; 3 State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; 4 Institute of Atmospheric Environment, Guangdong Provincial Academy of Environmental Science, Guangzhou 510045, China; 5 Joint Lab for Atmospheric Photochemistry, Guangdong-Hong Kong-Macau Center for Eco-Environmental Sciences, Guangzhou 511363, China
  • Received:2023-09-13 Revised:2023-11-11 Online:2023-11-28 Published:2024-02-06
  • Contact: Mingjin TANG E-mail:mingjintang@gig.ac.cn

摘要: 吸湿性是大气颗粒物最重要的物理化学性质之一, 直接影响着实际大气条件下气溶胶的粒径、形貌、成分、化 学反应活性和光学性质, 从而最终影响着气溶胶的环境与气候效应。现有的吸湿性测量技术大多需要假设颗粒物为 球形, 且灵敏度较低, 无法准确测定非球形颗粒物或吸湿性较低颗粒物的吸湿性。蒸汽吸附分析仪通过测量颗粒物 的质量随相对湿度的变化来研究其吸湿性, 这种新方法不仅对颗粒物的形貌没有要求, 而且具有卓越的灵敏度。本 文首先介绍了这种气溶胶吸湿性测量新方法的工作原理和技术特点, 然后重点介绍了这种新方法在大气科学、地球与 行星科学、医用气溶胶等多个领域中的应用。最后, 在简要总结蒸汽吸附分析仪在大气颗粒物吸湿性研究上的优越性 和局限性的基础上, 对未来可开展的吸湿性研究工作提出了一些设想。

关键词: 吸湿性, 蒸汽吸附分析仪, 大气科学, 地球与行星科学, 医用气溶胶

Abstract: As one of the most important physical and chemical properties of atmospheric particulate matter,hygroscopicity can directly affect the particle size, morphology, chemical composition, chemical reactivity, and optical properties of aerosol particles under ambient conditions, thereby ultimately having an impact on the environmental and climatic effects of aerosol particles. Most existing widely used hygroscopicity measurement techniques have low sensitivity and assume that the particles are spherical, making it difficult to accurately determine the hygroscopicity of non-spherical or low-hygroscopic particulate matter. Comparatively, vapor sorption analyzer studies the hygroscopicity of particles by measuring the mass change of particle samples as a function of relative humidity. This new method not only has no requirements for particle morphology, but also has excellent measurement sensitivity. In this paper, the working principle and technical characteristics of this new method for aerosol hygroscopic measurement are introduced firstly, and then the application of this new method in atmospheric science, earth and planetary science, medical aerosol particles, and other fields is described in detail. Finally, based on the brief summary of the advantages and limitations of the vapor sorption analyzer in the study of atmospheric particle hygroscopicity, some future research directions are discussed and prospected.

Key words: hygroscopicity, vapor sorption analyzer, atmospheric science, earth and planetary science; medical aerosol particles

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