植物源挥发性有机物采样和分析方法研究进展  

Research Advances in Methods of Collecting and Analyzing Biogenic Volatile Organic Compounds

作　　者：张宜升[1,2] 谭玉冉 韩枝燏 白建辉 顾达萨[4] 马子轸 陶文鑫 杜金花 冷吉虎 ZHANG Yisheng;TAN Yuran;HAN Zhiyu;BAI Jianhui;GU Dasa;MA Zizhen;TAO Wenxin;DU Jinhua;LENG Jihu(School of Environment and Municipal Engineering,Qingdao University of Technology,Qingdao 266520,China;Guangdong-Hongkong-Macao Joint Lab of Collaborative Innovation for Environmental Quality,Guangzhou 511443,China;LAGEO,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China;Division of Environment and Sustainability,Hong Kong University of Science and Technology,Hong Kong 999077,China)

机构地区：[1]青岛理工大学环境与市政工程学院,山东青岛266520 [2]粤港澳环境质量协同创新联合实验室,广东广州511443 [3]中国科学院大气物理研究所中层大气与全球环境探测重点实验室,北京100029 [4]香港科技大学环境与可持续发展学部,中国香港999077

出　　处：《环境科学与技术》2023年第4期81-91,共11页Environmental Science & Technology

基　　金：山东省一流学科开放课题(QUTSEME201911);粤港澳环境质量协同创新联合实验室开放基金(GHML.2021-103)。

摘　　要：植物源挥发性有机物(BVOCs)排放量约占全球总VOCs排放的90%,其排放易受环境因子(温度、光照、土壤水分、饱和水汽压差、风速、风向、O_(3)和CO_(2)浓度等)的影响,对采样和分析要求极高,而BVOCs样品的精准采集与分析是获取BVOCs排放因子的基础。该文综述了国内外BVOCs采样和分析方法,根据采样系统是否能控制或模拟环境因子(温度、湿度、光照强度、空气湍流、二氧化碳浓度等),对采样叶室的适用性进行了分析。其中光合仪-动态封闭系统可精准控制温度、光照强度、二氧化碳浓度,易使空气形成自然交换且便于外场测量,适用于大多数植物BVOCs排放测量。依托高塔、系留球、飞机等开展测量的开放式采样系统适用于外场的长期观测。PTR-MS、PTR-TOF-MS、Vocus-PTR-TOF等在线分析系统逐步得到应用。微型传感器已应用于BVOCs的快速检测,碳同位素分析法已应用于BVOCs合成转化过程中组分的探究。对采样和分析系统发展的研究,将为精准获取BVOCs排放因子并评估其环境效应提供依据。Biogenic volatile organic compounds(BVOCs)account for about 90%of total VOCs,and their emissions are susceptible to environmental factors(temperature,light,soil moisture,wind speed,wind direction,O_(3)and CO_(2)concentrations,etc.),which require high techniques in sampling and analysis.The accurate collection and analysis of BVOCs air samples are the basis for determining the emission factors of BVOCs.In this paper,the research progresses that have been achieved in terms of the sampling and analysis methods are reviewed,and the applicability of the sampling leaf chamber is evaluated according to whether the sampling system can control or simulate environmental factors(temperature,light intensity,air turbulence,humidity and CO_(2)concentration,etc.).The dynamic closed systems,among others,the photosynthetic instrumentdynamic closed system,can accurately control the temperature,light intensity,and carbon dioxide concentration,so it is suitable for the measurement of BVOCs for most plants in the field.In addition,the open sampling systems,especially measurement systems such as towers and aircraft,are suitable for long-term observations in the field such as forests.PTRMS,PTR-TOF-MS,Vocus-PTR-TOF and other online analysis systems are widely used for BVOCs detection.At the same time,miniature sensors have also begun to be applied to the rapid detection of BVOCs;and the carbon isotope analysis has begun to be used to explore the components of BVOCs in the synthesis and transformation process.The recent advances in the sampling and analysis systems are conducive to obtaining the emission factors of BVOCs and providing a basis for evaluating the environmental effects of BVOCs emissions.

关 键 词：植物源挥发性有机物 动态封闭系统 便携式分析系统 微型传感器 碳同位素法 

分 类 号：X511[环境科学与工程—环境工程]